public final class OffsetDateTime extends Object implements Temporal, TemporalAdjuster, Comparable<OffsetDateTime>, Serializable
2007-12-03T10:15:30+01:00
.
OffsetDateTime
is an immutable representation of a date-time with an offset.
This class stores all date and time fields, to a precision of nanoseconds,
as well as the offset from UTC/Greenwich. For example, the value
"2nd October 2007 at 13:45.30.123456789 +02:00" can be stored in an OffsetDateTime
.
OffsetDateTime
, ZonedDateTime
and Instant
all store an instant
on the time-line to nanosecond precision.
Instant
is the simplest, simply representing the instant.
OffsetDateTime
adds to the instant the offset from UTC/Greenwich, which allows
the local date-time to be obtained.
ZonedDateTime
adds full time-zone rules.
It is intended that ZonedDateTime
or Instant
is used to model data
in simpler applications. This class may be used when modeling date-time concepts in
more detail, or when communicating to a database or in a network protocol.
This is a value-based
class; use of identity-sensitive operations (including reference equality
(==
), identity hash code, or synchronization) on instances of
OffsetDateTime
may have unpredictable results and should be avoided.
The equals
method should be used for comparisons.
Modifier and Type | Field and Description |
---|---|
static OffsetDateTime |
MAX
The maximum supported
OffsetDateTime , '+999999999-12-31T23:59:59.999999999-18:00'. |
static OffsetDateTime |
MIN
The minimum supported
OffsetDateTime , '-999999999-01-01T00:00:00+18:00'. |
Modifier and Type | Method and Description |
---|---|
Temporal |
adjustInto(Temporal temporal)
Adjusts the specified temporal object to have the same offset, date
and time as this object.
|
ZonedDateTime |
atZoneSameInstant(ZoneId zone)
Combines this date-time with a time-zone to create a
ZonedDateTime
ensuring that the result has the same instant. |
ZonedDateTime |
atZoneSimilarLocal(ZoneId zone)
Combines this date-time with a time-zone to create a
ZonedDateTime
trying to keep the same local date and time. |
int |
compareTo(OffsetDateTime other)
Compares this
OffsetDateTime to another date-time. |
boolean |
equals(Object obj)
Checks if this date-time is equal to another date-time.
|
String |
format(DateTimeFormatter formatter)
Formats this date-time using the specified formatter.
|
static OffsetDateTime |
from(TemporalAccessor temporal)
Obtains an instance of
OffsetDateTime from a temporal object. |
int |
get(TemporalField field)
Gets the value of the specified field from this date-time as an
int . |
int |
getDayOfMonth()
Gets the day-of-month field.
|
DayOfWeek |
getDayOfWeek()
Gets the day-of-week field, which is an enum
DayOfWeek . |
int |
getDayOfYear()
Gets the day-of-year field.
|
int |
getHour()
Gets the hour-of-day field.
|
long |
getLong(TemporalField field)
Gets the value of the specified field from this date-time as a
long . |
int |
getMinute()
Gets the minute-of-hour field.
|
Month |
getMonth()
Gets the month-of-year field using the
Month enum. |
int |
getMonthValue()
Gets the month-of-year field from 1 to 12.
|
int |
getNano()
Gets the nano-of-second field.
|
ZoneOffset |
getOffset()
Gets the zone offset, such as '+01:00'.
|
int |
getSecond()
Gets the second-of-minute field.
|
int |
getYear()
Gets the year field.
|
int |
hashCode()
A hash code for this date-time.
|
boolean |
isAfter(OffsetDateTime other)
Checks if the instant of this date-time is after that of the specified date-time.
|
boolean |
isBefore(OffsetDateTime other)
Checks if the instant of this date-time is before that of the specified date-time.
|
boolean |
isEqual(OffsetDateTime other)
Checks if the instant of this date-time is equal to that of the specified date-time.
|
boolean |
isSupported(TemporalField field)
Checks if the specified field is supported.
|
boolean |
isSupported(TemporalUnit unit)
Checks if the specified unit is supported.
|
OffsetDateTime |
minus(long amountToSubtract,
TemporalUnit unit)
Returns a copy of this date-time with the specified amount subtracted.
|
OffsetDateTime |
minus(TemporalAmount amountToSubtract)
Returns a copy of this date-time with the specified amount subtracted.
|
OffsetDateTime |
minusDays(long days)
Returns a copy of this
OffsetDateTime with the specified period in days subtracted. |
OffsetDateTime |
minusHours(long hours)
Returns a copy of this
OffsetDateTime with the specified period in hours subtracted. |
OffsetDateTime |
minusMinutes(long minutes)
Returns a copy of this
OffsetDateTime with the specified period in minutes subtracted. |
OffsetDateTime |
minusMonths(long months)
Returns a copy of this
OffsetDateTime with the specified period in months subtracted. |
OffsetDateTime |
minusNanos(long nanos)
Returns a copy of this
OffsetDateTime with the specified period in nanoseconds subtracted. |
OffsetDateTime |
minusSeconds(long seconds)
Returns a copy of this
OffsetDateTime with the specified period in seconds subtracted. |
OffsetDateTime |
minusWeeks(long weeks)
Returns a copy of this
OffsetDateTime with the specified period in weeks subtracted. |
OffsetDateTime |
minusYears(long years)
Returns a copy of this
OffsetDateTime with the specified period in years subtracted. |
static OffsetDateTime |
now()
Obtains the current date-time from the system clock in the default time-zone.
|
static OffsetDateTime |
now(Clock clock)
Obtains the current date-time from the specified clock.
|
static OffsetDateTime |
now(ZoneId zone)
Obtains the current date-time from the system clock in the specified time-zone.
|
static OffsetDateTime |
of(int year,
int month,
int dayOfMonth,
int hour,
int minute,
int second,
int nanoOfSecond,
ZoneOffset offset)
Obtains an instance of
OffsetDateTime from a year, month, day,
hour, minute, second, nanosecond and offset. |
static OffsetDateTime |
of(LocalDate date,
LocalTime time,
ZoneOffset offset)
Obtains an instance of
OffsetDateTime from a date, time and offset. |
static OffsetDateTime |
of(LocalDateTime dateTime,
ZoneOffset offset)
Obtains an instance of
OffsetDateTime from a date-time and offset. |
static OffsetDateTime |
ofInstant(Instant instant,
ZoneId zone)
Obtains an instance of
OffsetDateTime from an Instant and zone ID. |
static OffsetDateTime |
parse(CharSequence text)
Obtains an instance of
OffsetDateTime from a text string
such as 2007-12-03T10:15:30+01:00 . |
static OffsetDateTime |
parse(CharSequence text,
DateTimeFormatter formatter)
Obtains an instance of
OffsetDateTime from a text string using a specific formatter. |
OffsetDateTime |
plus(long amountToAdd,
TemporalUnit unit)
Returns a copy of this date-time with the specified amount added.
|
OffsetDateTime |
plus(TemporalAmount amountToAdd)
Returns a copy of this date-time with the specified amount added.
|
OffsetDateTime |
plusDays(long days)
Returns a copy of this OffsetDateTime with the specified period in days added.
|
OffsetDateTime |
plusHours(long hours)
Returns a copy of this
OffsetDateTime with the specified period in hours added. |
OffsetDateTime |
plusMinutes(long minutes)
Returns a copy of this
OffsetDateTime with the specified period in minutes added. |
OffsetDateTime |
plusMonths(long months)
Returns a copy of this
OffsetDateTime with the specified period in months added. |
OffsetDateTime |
plusNanos(long nanos)
Returns a copy of this
OffsetDateTime with the specified period in nanoseconds added. |
OffsetDateTime |
plusSeconds(long seconds)
Returns a copy of this
OffsetDateTime with the specified period in seconds added. |
OffsetDateTime |
plusWeeks(long weeks)
Returns a copy of this OffsetDateTime with the specified period in weeks added.
|
OffsetDateTime |
plusYears(long years)
Returns a copy of this
OffsetDateTime with the specified period in years added. |
<R> R |
query(TemporalQuery<R> query)
Queries this date-time using the specified query.
|
ValueRange |
range(TemporalField field)
Gets the range of valid values for the specified field.
|
static Comparator<OffsetDateTime> |
timeLineOrder()
Gets a comparator that compares two
OffsetDateTime instances
based solely on the instant. |
long |
toEpochSecond()
Converts this date-time to the number of seconds from the epoch of 1970-01-01T00:00:00Z.
|
Instant |
toInstant()
Converts this date-time to an
Instant . |
LocalDate |
toLocalDate()
Gets the
LocalDate part of this date-time. |
LocalDateTime |
toLocalDateTime()
Gets the
LocalDateTime part of this offset date-time. |
LocalTime |
toLocalTime()
Gets the
LocalTime part of this date-time. |
OffsetTime |
toOffsetTime()
Converts this date-time to an
OffsetTime . |
String |
toString()
Outputs this date-time as a
String , such as 2007-12-03T10:15:30+01:00 . |
ZonedDateTime |
toZonedDateTime()
Converts this date-time to a
ZonedDateTime using the offset as the zone ID. |
OffsetDateTime |
truncatedTo(TemporalUnit unit)
Returns a copy of this
OffsetDateTime with the time truncated. |
long |
until(Temporal endExclusive,
TemporalUnit unit)
Calculates the amount of time until another date-time in terms of the specified unit.
|
OffsetDateTime |
with(TemporalAdjuster adjuster)
Returns an adjusted copy of this date-time.
|
OffsetDateTime |
with(TemporalField field,
long newValue)
Returns a copy of this date-time with the specified field set to a new value.
|
OffsetDateTime |
withDayOfMonth(int dayOfMonth)
Returns a copy of this
OffsetDateTime with the day-of-month altered. |
OffsetDateTime |
withDayOfYear(int dayOfYear)
Returns a copy of this
OffsetDateTime with the day-of-year altered. |
OffsetDateTime |
withHour(int hour)
Returns a copy of this
OffsetDateTime with the hour-of-day value altered. |
OffsetDateTime |
withMinute(int minute)
Returns a copy of this
OffsetDateTime with the minute-of-hour value altered. |
OffsetDateTime |
withMonth(int month)
Returns a copy of this
OffsetDateTime with the month-of-year altered. |
OffsetDateTime |
withNano(int nanoOfSecond)
Returns a copy of this
OffsetDateTime with the nano-of-second value altered. |
OffsetDateTime |
withOffsetSameInstant(ZoneOffset offset)
Returns a copy of this
OffsetDateTime with the specified offset ensuring
that the result is at the same instant. |
OffsetDateTime |
withOffsetSameLocal(ZoneOffset offset)
Returns a copy of this
OffsetDateTime with the specified offset ensuring
that the result has the same local date-time. |
OffsetDateTime |
withSecond(int second)
Returns a copy of this
OffsetDateTime with the second-of-minute value altered. |
OffsetDateTime |
withYear(int year)
Returns a copy of this
OffsetDateTime with the year altered. |
public static final OffsetDateTime MIN
OffsetDateTime
, '-999999999-01-01T00:00:00+18:00'.
This is the local date-time of midnight at the start of the minimum date
in the maximum offset (larger offsets are earlier on the time-line).
This combines LocalDateTime.MIN
and ZoneOffset.MAX
.
This could be used by an application as a "far past" date-time.public static final OffsetDateTime MAX
OffsetDateTime
, '+999999999-12-31T23:59:59.999999999-18:00'.
This is the local date-time just before midnight at the end of the maximum date
in the minimum offset (larger negative offsets are later on the time-line).
This combines LocalDateTime.MAX
and ZoneOffset.MIN
.
This could be used by an application as a "far future" date-time.public static Comparator<OffsetDateTime> timeLineOrder()
OffsetDateTime
instances
based solely on the instant.
This method differs from the comparison in compareTo(java.time.OffsetDateTime)
in that it
only compares the underlying instant.
isAfter(java.time.OffsetDateTime)
,
isBefore(java.time.OffsetDateTime)
,
isEqual(java.time.OffsetDateTime)
public static OffsetDateTime now()
This will query the system clock
in the default
time-zone to obtain the current date-time.
The offset will be calculated from the time-zone in the clock.
Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.
public static OffsetDateTime now(ZoneId zone)
This will query the system clock
to obtain the current date-time.
Specifying the time-zone avoids dependence on the default time-zone.
The offset will be calculated from the specified time-zone.
Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.
zone
- the zone ID to use, not nullpublic static OffsetDateTime now(Clock clock)
This will query the specified clock to obtain the current date-time. The offset will be calculated from the time-zone in the clock.
Using this method allows the use of an alternate clock for testing.
The alternate clock may be introduced using dependency injection
.
clock
- the clock to use, not nullpublic static OffsetDateTime of(LocalDate date, LocalTime time, ZoneOffset offset)
OffsetDateTime
from a date, time and offset.
This creates an offset date-time with the specified local date, time and offset.
date
- the local date, not nulltime
- the local time, not nulloffset
- the zone offset, not nullpublic static OffsetDateTime of(LocalDateTime dateTime, ZoneOffset offset)
OffsetDateTime
from a date-time and offset.
This creates an offset date-time with the specified local date-time and offset.
dateTime
- the local date-time, not nulloffset
- the zone offset, not nullpublic static OffsetDateTime of(int year, int month, int dayOfMonth, int hour, int minute, int second, int nanoOfSecond, ZoneOffset offset)
OffsetDateTime
from a year, month, day,
hour, minute, second, nanosecond and offset.
This creates an offset date-time with the seven specified fields.
This method exists primarily for writing test cases.
Non test-code will typically use other methods to create an offset time.
LocalDateTime
has five additional convenience variants of the
equivalent factory method taking fewer arguments.
They are not provided here to reduce the footprint of the API.
year
- the year to represent, from MIN_YEAR to MAX_YEARmonth
- the month-of-year to represent, from 1 (January) to 12 (December)dayOfMonth
- the day-of-month to represent, from 1 to 31hour
- the hour-of-day to represent, from 0 to 23minute
- the minute-of-hour to represent, from 0 to 59second
- the second-of-minute to represent, from 0 to 59nanoOfSecond
- the nano-of-second to represent, from 0 to 999,999,999offset
- the zone offset, not nullDateTimeException
- if the value of any field is out of range, or
if the day-of-month is invalid for the month-yearpublic static OffsetDateTime ofInstant(Instant instant, ZoneId zone)
OffsetDateTime
from an Instant
and zone ID.
This creates an offset date-time with the same instant as that specified. Finding the offset from UTC/Greenwich is simple as there is only one valid offset for each instant.
instant
- the instant to create the date-time from, not nullzone
- the time-zone, which may be an offset, not nullDateTimeException
- if the result exceeds the supported rangepublic static OffsetDateTime from(TemporalAccessor temporal)
OffsetDateTime
from a temporal object.
This obtains an offset date-time based on the specified temporal.
A TemporalAccessor
represents an arbitrary set of date and time information,
which this factory converts to an instance of OffsetDateTime
.
The conversion will first obtain a ZoneOffset
from the temporal object.
It will then try to obtain a LocalDateTime
, falling back to an Instant
if necessary.
The result will be the combination of ZoneOffset
with either
with LocalDateTime
or Instant
.
Implementations are permitted to perform optimizations such as accessing
those fields that are equivalent to the relevant objects.
This method matches the signature of the functional interface TemporalQuery
allowing it to be used in queries via method reference, OffsetDateTime::from
.
temporal
- the temporal object to convert, not nullDateTimeException
- if unable to convert to an OffsetDateTime
public static OffsetDateTime parse(CharSequence text)
OffsetDateTime
from a text string
such as 2007-12-03T10:15:30+01:00
.
The string must represent a valid date-time and is parsed using
DateTimeFormatter.ISO_OFFSET_DATE_TIME
.
text
- the text to parse such as "2007-12-03T10:15:30+01:00", not nullDateTimeParseException
- if the text cannot be parsedpublic static OffsetDateTime parse(CharSequence text, DateTimeFormatter formatter)
OffsetDateTime
from a text string using a specific formatter.
The text is parsed using the formatter, returning a date-time.
text
- the text to parse, not nullformatter
- the formatter to use, not nullDateTimeParseException
- if the text cannot be parsedpublic boolean isSupported(TemporalField field)
This checks if this date-time can be queried for the specified field.
If false, then calling the range
,
get
and with(TemporalField, long)
methods will throw an exception.
If the field is a ChronoField
then the query is implemented here.
The supported fields are:
NANO_OF_SECOND
NANO_OF_DAY
MICRO_OF_SECOND
MICRO_OF_DAY
MILLI_OF_SECOND
MILLI_OF_DAY
SECOND_OF_MINUTE
SECOND_OF_DAY
MINUTE_OF_HOUR
MINUTE_OF_DAY
HOUR_OF_AMPM
CLOCK_HOUR_OF_AMPM
HOUR_OF_DAY
CLOCK_HOUR_OF_DAY
AMPM_OF_DAY
DAY_OF_WEEK
ALIGNED_DAY_OF_WEEK_IN_MONTH
ALIGNED_DAY_OF_WEEK_IN_YEAR
DAY_OF_MONTH
DAY_OF_YEAR
EPOCH_DAY
ALIGNED_WEEK_OF_MONTH
ALIGNED_WEEK_OF_YEAR
MONTH_OF_YEAR
PROLEPTIC_MONTH
YEAR_OF_ERA
YEAR
ERA
INSTANT_SECONDS
OFFSET_SECONDS
ChronoField
instances will return false.
If the field is not a ChronoField
, then the result of this method
is obtained by invoking TemporalField.isSupportedBy(TemporalAccessor)
passing this
as the argument.
Whether the field is supported is determined by the field.
isSupported
in interface TemporalAccessor
field
- the field to check, null returns falsepublic boolean isSupported(TemporalUnit unit)
This checks if the specified unit can be added to, or subtracted from, this date-time.
If false, then calling the plus(long, TemporalUnit)
and
minus
methods will throw an exception.
If the unit is a ChronoUnit
then the query is implemented here.
The supported units are:
NANOS
MICROS
MILLIS
SECONDS
MINUTES
HOURS
HALF_DAYS
DAYS
WEEKS
MONTHS
YEARS
DECADES
CENTURIES
MILLENNIA
ERAS
ChronoUnit
instances will return false.
If the unit is not a ChronoUnit
, then the result of this method
is obtained by invoking TemporalUnit.isSupportedBy(Temporal)
passing this
as the argument.
Whether the unit is supported is determined by the unit.
isSupported
in interface Temporal
unit
- the unit to check, null returns falsepublic ValueRange range(TemporalField field)
The range object expresses the minimum and maximum valid values for a field. This date-time is used to enhance the accuracy of the returned range. If it is not possible to return the range, because the field is not supported or for some other reason, an exception is thrown.
If the field is a ChronoField
then the query is implemented here.
The supported fields
will return
appropriate range instances.
All other ChronoField
instances will throw an UnsupportedTemporalTypeException
.
If the field is not a ChronoField
, then the result of this method
is obtained by invoking TemporalField.rangeRefinedBy(TemporalAccessor)
passing this
as the argument.
Whether the range can be obtained is determined by the field.
range
in interface TemporalAccessor
field
- the field to query the range for, not nullDateTimeException
- if the range for the field cannot be obtainedUnsupportedTemporalTypeException
- if the field is not supportedpublic int get(TemporalField field)
int
.
This queries this date-time for the value for the specified field. The returned value will always be within the valid range of values for the field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.
If the field is a ChronoField
then the query is implemented here.
The supported fields
will return valid
values based on this date-time, except NANO_OF_DAY
, MICRO_OF_DAY
,
EPOCH_DAY
, PROLEPTIC_MONTH
and INSTANT_SECONDS
which are too
large to fit in an int
and throw a DateTimeException
.
All other ChronoField
instances will throw an UnsupportedTemporalTypeException
.
If the field is not a ChronoField
, then the result of this method
is obtained by invoking TemporalField.getFrom(TemporalAccessor)
passing this
as the argument. Whether the value can be obtained,
and what the value represents, is determined by the field.
get
in interface TemporalAccessor
field
- the field to get, not nullDateTimeException
- if a value for the field cannot be obtained or
the value is outside the range of valid values for the fieldUnsupportedTemporalTypeException
- if the field is not supported or
the range of values exceeds an int
ArithmeticException
- if numeric overflow occurspublic long getLong(TemporalField field)
long
.
This queries this date-time for the value for the specified field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.
If the field is a ChronoField
then the query is implemented here.
The supported fields
will return valid
values based on this date-time.
All other ChronoField
instances will throw an UnsupportedTemporalTypeException
.
If the field is not a ChronoField
, then the result of this method
is obtained by invoking TemporalField.getFrom(TemporalAccessor)
passing this
as the argument. Whether the value can be obtained,
and what the value represents, is determined by the field.
getLong
in interface TemporalAccessor
field
- the field to get, not nullDateTimeException
- if a value for the field cannot be obtainedUnsupportedTemporalTypeException
- if the field is not supportedArithmeticException
- if numeric overflow occurspublic ZoneOffset getOffset()
This is the offset of the local date-time from UTC/Greenwich.
public OffsetDateTime withOffsetSameLocal(ZoneOffset offset)
OffsetDateTime
with the specified offset ensuring
that the result has the same local date-time.
This method returns an object with the same LocalDateTime
and the specified ZoneOffset
.
No calculation is needed or performed.
For example, if this time represents 2007-12-03T10:30+02:00
and the offset specified is
+03:00
, then this method will return 2007-12-03T10:30+03:00
.
To take into account the difference between the offsets, and adjust the time fields,
use withOffsetSameInstant(java.time.ZoneOffset)
.
This instance is immutable and unaffected by this method call.
offset
- the zone offset to change to, not nullOffsetDateTime
based on this date-time with the requested offset, not nullpublic OffsetDateTime withOffsetSameInstant(ZoneOffset offset)
OffsetDateTime
with the specified offset ensuring
that the result is at the same instant.
This method returns an object with the specified ZoneOffset
and a LocalDateTime
adjusted by the difference between the two offsets.
This will result in the old and new objects representing the same instant.
This is useful for finding the local time in a different offset.
For example, if this time represents 2007-12-03T10:30+02:00
and the offset specified is
+03:00
, then this method will return 2007-12-03T11:30+03:00
.
To change the offset without adjusting the local time use withOffsetSameLocal(java.time.ZoneOffset)
.
This instance is immutable and unaffected by this method call.
offset
- the zone offset to change to, not nullOffsetDateTime
based on this date-time with the requested offset, not nullDateTimeException
- if the result exceeds the supported date rangepublic LocalDateTime toLocalDateTime()
LocalDateTime
part of this offset date-time.
This returns a LocalDateTime
with the same year, month, day and time
as this date-time.
public LocalDate toLocalDate()
LocalDate
part of this date-time.
This returns a LocalDate
with the same year, month and day
as this date-time.
public int getYear()
This method returns the primitive int
value for the year.
The year returned by this method is proleptic as per get(YEAR)
.
To obtain the year-of-era, use get(YEAR_OF_ERA)
.
public int getMonthValue()
This method returns the month as an int
from 1 to 12.
Application code is frequently clearer if the enum Month
is used by calling getMonth()
.
getMonth()
public Month getMonth()
Month
enum.
This method returns the enum Month
for the month.
This avoids confusion as to what int
values mean.
If you need access to the primitive int
value then the enum
provides the int value
.
getMonthValue()
public int getDayOfMonth()
This method returns the primitive int
value for the day-of-month.
public int getDayOfYear()
This method returns the primitive int
value for the day-of-year.
public DayOfWeek getDayOfWeek()
DayOfWeek
.
This method returns the enum DayOfWeek
for the day-of-week.
This avoids confusion as to what int
values mean.
If you need access to the primitive int
value then the enum
provides the int value
.
Additional information can be obtained from the DayOfWeek
.
This includes textual names of the values.
public LocalTime toLocalTime()
LocalTime
part of this date-time.
This returns a LocalTime
with the same hour, minute, second and
nanosecond as this date-time.
public int getHour()
public int getMinute()
public int getSecond()
public int getNano()
public OffsetDateTime with(TemporalAdjuster adjuster)
This returns an OffsetDateTime
, based on this one, with the date-time adjusted.
The adjustment takes place using the specified adjuster strategy object.
Read the documentation of the adjuster to understand what adjustment will be made.
A simple adjuster might simply set the one of the fields, such as the year field.
A more complex adjuster might set the date to the last day of the month.
A selection of common adjustments is provided in TemporalAdjuster
.
These include finding the "last day of the month" and "next Wednesday".
Key date-time classes also implement the TemporalAdjuster
interface,
such as Month
and MonthDay
.
The adjuster is responsible for handling special cases, such as the varying
lengths of month and leap years.
For example this code returns a date on the last day of July:
import static java.time.Month.*; import static java.time.temporal.Adjusters.*; result = offsetDateTime.with(JULY).with(lastDayOfMonth());
The classes LocalDate
, LocalTime
and ZoneOffset
implement
TemporalAdjuster
, thus this method can be used to change the date, time or offset:
result = offsetDateTime.with(date); result = offsetDateTime.with(time); result = offsetDateTime.with(offset);
The result of this method is obtained by invoking the
TemporalAdjuster.adjustInto(Temporal)
method on the
specified adjuster passing this
as the argument.
This instance is immutable and unaffected by this method call.
with
in interface Temporal
adjuster
- the adjuster to use, not nullOffsetDateTime
based on this
with the adjustment made, not nullDateTimeException
- if the adjustment cannot be madeArithmeticException
- if numeric overflow occurspublic OffsetDateTime with(TemporalField field, long newValue)
TThis returns an OffsetDateTime
, based on this one, with the value
for the specified field changed.
This can be used to change any supported field, such as the year, month or day-of-month.
If it is not possible to set the value, because the field is not supported or for
some other reason, an exception is thrown.
In some cases, changing the specified field can cause the resulting date-time to become invalid, such as changing the month from 31st January to February would make the day-of-month invalid. In cases like this, the field is responsible for resolving the date. Typically it will choose the previous valid date, which would be the last valid day of February in this example.
If the field is a ChronoField
then the adjustment is implemented here.
The INSTANT_SECONDS
field will return a date-time with the specified instant.
The offset and nano-of-second are unchanged.
If the new instant value is outside the valid range then a DateTimeException
will be thrown.
The OFFSET_SECONDS
field will return a date-time with the specified offset.
The local date-time is unaltered. If the new offset value is outside the valid range
then a DateTimeException
will be thrown.
The other supported fields
will behave as per
the matching method on LocalDateTime
.
In this case, the offset is not part of the calculation and will be unchanged.
All other ChronoField
instances will throw an UnsupportedTemporalTypeException
.
If the field is not a ChronoField
, then the result of this method
is obtained by invoking TemporalField.adjustInto(Temporal, long)
passing this
as the argument. In this case, the field determines
whether and how to adjust the instant.
This instance is immutable and unaffected by this method call.
with
in interface Temporal
field
- the field to set in the result, not nullnewValue
- the new value of the field in the resultOffsetDateTime
based on this
with the specified field set, not nullDateTimeException
- if the field cannot be setUnsupportedTemporalTypeException
- if the field is not supportedArithmeticException
- if numeric overflow occurspublic OffsetDateTime withYear(int year)
OffsetDateTime
with the year altered.
The offset does not affect the calculation and will be the same in the result.
If the day-of-month is invalid for the year, it will be changed to the last valid day of the month.
This instance is immutable and unaffected by this method call.
year
- the year to set in the result, from MIN_YEAR to MAX_YEAROffsetDateTime
based on this date-time with the requested year, not nullDateTimeException
- if the year value is invalidpublic OffsetDateTime withMonth(int month)
OffsetDateTime
with the month-of-year altered.
The offset does not affect the calculation and will be the same in the result.
If the day-of-month is invalid for the year, it will be changed to the last valid day of the month.
This instance is immutable and unaffected by this method call.
month
- the month-of-year to set in the result, from 1 (January) to 12 (December)OffsetDateTime
based on this date-time with the requested month, not nullDateTimeException
- if the month-of-year value is invalidpublic OffsetDateTime withDayOfMonth(int dayOfMonth)
OffsetDateTime
with the day-of-month altered.
If the resulting OffsetDateTime
is invalid, an exception is thrown.
The offset does not affect the calculation and will be the same in the result.
This instance is immutable and unaffected by this method call.
dayOfMonth
- the day-of-month to set in the result, from 1 to 28-31OffsetDateTime
based on this date-time with the requested day, not nullDateTimeException
- if the day-of-month value is invalid,
or if the day-of-month is invalid for the month-yearpublic OffsetDateTime withDayOfYear(int dayOfYear)
OffsetDateTime
with the day-of-year altered.
If the resulting OffsetDateTime
is invalid, an exception is thrown.
This instance is immutable and unaffected by this method call.
dayOfYear
- the day-of-year to set in the result, from 1 to 365-366OffsetDateTime
based on this date with the requested day, not nullDateTimeException
- if the day-of-year value is invalid,
or if the day-of-year is invalid for the yearpublic OffsetDateTime withHour(int hour)
OffsetDateTime
with the hour-of-day value altered.
The offset does not affect the calculation and will be the same in the result.
This instance is immutable and unaffected by this method call.
hour
- the hour-of-day to set in the result, from 0 to 23OffsetDateTime
based on this date-time with the requested hour, not nullDateTimeException
- if the hour value is invalidpublic OffsetDateTime withMinute(int minute)
OffsetDateTime
with the minute-of-hour value altered.
The offset does not affect the calculation and will be the same in the result.
This instance is immutable and unaffected by this method call.
minute
- the minute-of-hour to set in the result, from 0 to 59OffsetDateTime
based on this date-time with the requested minute, not nullDateTimeException
- if the minute value is invalidpublic OffsetDateTime withSecond(int second)
OffsetDateTime
with the second-of-minute value altered.
The offset does not affect the calculation and will be the same in the result.
This instance is immutable and unaffected by this method call.
second
- the second-of-minute to set in the result, from 0 to 59OffsetDateTime
based on this date-time with the requested second, not nullDateTimeException
- if the second value is invalidpublic OffsetDateTime withNano(int nanoOfSecond)
OffsetDateTime
with the nano-of-second value altered.
The offset does not affect the calculation and will be the same in the result.
This instance is immutable and unaffected by this method call.
nanoOfSecond
- the nano-of-second to set in the result, from 0 to 999,999,999OffsetDateTime
based on this date-time with the requested nanosecond, not nullDateTimeException
- if the nanos value is invalidpublic OffsetDateTime truncatedTo(TemporalUnit unit)
OffsetDateTime
with the time truncated.
Truncation returns a copy of the original date-time with fields
smaller than the specified unit set to zero.
For example, truncating with the minutes
unit
will set the second-of-minute and nano-of-second field to zero.
The unit must have a duration
that divides into the length of a standard day without remainder.
This includes all supplied time units on ChronoUnit
and
DAYS
. Other units throw an exception.
The offset does not affect the calculation and will be the same in the result.
This instance is immutable and unaffected by this method call.
unit
- the unit to truncate to, not nullOffsetDateTime
based on this date-time with the time truncated, not nullDateTimeException
- if unable to truncateUnsupportedTemporalTypeException
- if the unit is not supportedpublic OffsetDateTime plus(TemporalAmount amountToAdd)
This returns an OffsetDateTime
, based on this one, with the specified amount added.
The amount is typically Period
or Duration
but may be
any other type implementing the TemporalAmount
interface.
The calculation is delegated to the amount object by calling
TemporalAmount.addTo(Temporal)
. The amount implementation is free
to implement the addition in any way it wishes, however it typically
calls back to plus(long, TemporalUnit)
. Consult the documentation
of the amount implementation to determine if it can be successfully added.
This instance is immutable and unaffected by this method call.
plus
in interface Temporal
amountToAdd
- the amount to add, not nullOffsetDateTime
based on this date-time with the addition made, not nullDateTimeException
- if the addition cannot be madeArithmeticException
- if numeric overflow occurspublic OffsetDateTime plus(long amountToAdd, TemporalUnit unit)
This returns an OffsetDateTime
, based on this one, with the amount
in terms of the unit added. If it is not possible to add the amount, because the
unit is not supported or for some other reason, an exception is thrown.
If the field is a ChronoUnit
then the addition is implemented by
LocalDateTime.plus(long, TemporalUnit)
.
The offset is not part of the calculation and will be unchanged in the result.
If the field is not a ChronoUnit
, then the result of this method
is obtained by invoking TemporalUnit.addTo(Temporal, long)
passing this
as the argument. In this case, the unit determines
whether and how to perform the addition.
This instance is immutable and unaffected by this method call.
plus
in interface Temporal
amountToAdd
- the amount of the unit to add to the result, may be negativeunit
- the unit of the amount to add, not nullOffsetDateTime
based on this date-time with the specified amount added, not nullDateTimeException
- if the addition cannot be madeUnsupportedTemporalTypeException
- if the unit is not supportedArithmeticException
- if numeric overflow occurspublic OffsetDateTime plusYears(long years)
OffsetDateTime
with the specified period in years added.
This method adds the specified amount to the years field in three steps:
For example, 2008-02-29 (leap year) plus one year would result in the invalid date 2009-02-29 (standard year). Instead of returning an invalid result, the last valid day of the month, 2009-02-28, is selected instead.
This instance is immutable and unaffected by this method call.
years
- the years to add, may be negativeOffsetDateTime
based on this date-time with the years added, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime plusMonths(long months)
OffsetDateTime
with the specified period in months added.
This method adds the specified amount to the months field in three steps:
For example, 2007-03-31 plus one month would result in the invalid date 2007-04-31. Instead of returning an invalid result, the last valid day of the month, 2007-04-30, is selected instead.
This instance is immutable and unaffected by this method call.
months
- the months to add, may be negativeOffsetDateTime
based on this date-time with the months added, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime plusWeeks(long weeks)
This method adds the specified amount in weeks to the days field incrementing the month and year fields as necessary to ensure the result remains valid. The result is only invalid if the maximum/minimum year is exceeded.
For example, 2008-12-31 plus one week would result in the 2009-01-07.
This instance is immutable and unaffected by this method call.
weeks
- the weeks to add, may be negativeOffsetDateTime
based on this date-time with the weeks added, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime plusDays(long days)
This method adds the specified amount to the days field incrementing the month and year fields as necessary to ensure the result remains valid. The result is only invalid if the maximum/minimum year is exceeded.
For example, 2008-12-31 plus one day would result in the 2009-01-01.
This instance is immutable and unaffected by this method call.
days
- the days to add, may be negativeOffsetDateTime
based on this date-time with the days added, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime plusHours(long hours)
OffsetDateTime
with the specified period in hours added.
This instance is immutable and unaffected by this method call.
hours
- the hours to add, may be negativeOffsetDateTime
based on this date-time with the hours added, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime plusMinutes(long minutes)
OffsetDateTime
with the specified period in minutes added.
This instance is immutable and unaffected by this method call.
minutes
- the minutes to add, may be negativeOffsetDateTime
based on this date-time with the minutes added, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime plusSeconds(long seconds)
OffsetDateTime
with the specified period in seconds added.
This instance is immutable and unaffected by this method call.
seconds
- the seconds to add, may be negativeOffsetDateTime
based on this date-time with the seconds added, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime plusNanos(long nanos)
OffsetDateTime
with the specified period in nanoseconds added.
This instance is immutable and unaffected by this method call.
nanos
- the nanos to add, may be negativeOffsetDateTime
based on this date-time with the nanoseconds added, not nullDateTimeException
- if the unit cannot be added to this typepublic OffsetDateTime minus(TemporalAmount amountToSubtract)
This returns an OffsetDateTime
, based on this one, with the specified amount subtracted.
The amount is typically Period
or Duration
but may be
any other type implementing the TemporalAmount
interface.
The calculation is delegated to the amount object by calling
TemporalAmount.subtractFrom(Temporal)
. The amount implementation is free
to implement the subtraction in any way it wishes, however it typically
calls back to minus(long, TemporalUnit)
. Consult the documentation
of the amount implementation to determine if it can be successfully subtracted.
This instance is immutable and unaffected by this method call.
minus
in interface Temporal
amountToSubtract
- the amount to subtract, not nullOffsetDateTime
based on this date-time with the subtraction made, not nullDateTimeException
- if the subtraction cannot be madeArithmeticException
- if numeric overflow occurspublic OffsetDateTime minus(long amountToSubtract, TemporalUnit unit)
This returns an OffsetDateTime
, based on this one, with the amount
in terms of the unit subtracted. If it is not possible to subtract the amount,
because the unit is not supported or for some other reason, an exception is thrown.
This method is equivalent to plus(long, TemporalUnit)
with the amount negated.
See that method for a full description of how addition, and thus subtraction, works.
This instance is immutable and unaffected by this method call.
minus
in interface Temporal
amountToSubtract
- the amount of the unit to subtract from the result, may be negativeunit
- the unit of the amount to subtract, not nullOffsetDateTime
based on this date-time with the specified amount subtracted, not nullDateTimeException
- if the subtraction cannot be madeUnsupportedTemporalTypeException
- if the unit is not supportedArithmeticException
- if numeric overflow occurspublic OffsetDateTime minusYears(long years)
OffsetDateTime
with the specified period in years subtracted.
This method subtracts the specified amount from the years field in three steps:
For example, 2008-02-29 (leap year) minus one year would result in the invalid date 2009-02-29 (standard year). Instead of returning an invalid result, the last valid day of the month, 2009-02-28, is selected instead.
This instance is immutable and unaffected by this method call.
years
- the years to subtract, may be negativeOffsetDateTime
based on this date-time with the years subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime minusMonths(long months)
OffsetDateTime
with the specified period in months subtracted.
This method subtracts the specified amount from the months field in three steps:
For example, 2007-03-31 minus one month would result in the invalid date 2007-04-31. Instead of returning an invalid result, the last valid day of the month, 2007-04-30, is selected instead.
This instance is immutable and unaffected by this method call.
months
- the months to subtract, may be negativeOffsetDateTime
based on this date-time with the months subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime minusWeeks(long weeks)
OffsetDateTime
with the specified period in weeks subtracted.
This method subtracts the specified amount in weeks from the days field decrementing the month and year fields as necessary to ensure the result remains valid. The result is only invalid if the maximum/minimum year is exceeded.
For example, 2008-12-31 minus one week would result in the 2009-01-07.
This instance is immutable and unaffected by this method call.
weeks
- the weeks to subtract, may be negativeOffsetDateTime
based on this date-time with the weeks subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime minusDays(long days)
OffsetDateTime
with the specified period in days subtracted.
This method subtracts the specified amount from the days field incrementing the month and year fields as necessary to ensure the result remains valid. The result is only invalid if the maximum/minimum year is exceeded.
For example, 2008-12-31 minus one day would result in the 2009-01-01.
This instance is immutable and unaffected by this method call.
days
- the days to subtract, may be negativeOffsetDateTime
based on this date-time with the days subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime minusHours(long hours)
OffsetDateTime
with the specified period in hours subtracted.
This instance is immutable and unaffected by this method call.
hours
- the hours to subtract, may be negativeOffsetDateTime
based on this date-time with the hours subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime minusMinutes(long minutes)
OffsetDateTime
with the specified period in minutes subtracted.
This instance is immutable and unaffected by this method call.
minutes
- the minutes to subtract, may be negativeOffsetDateTime
based on this date-time with the minutes subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime minusSeconds(long seconds)
OffsetDateTime
with the specified period in seconds subtracted.
This instance is immutable and unaffected by this method call.
seconds
- the seconds to subtract, may be negativeOffsetDateTime
based on this date-time with the seconds subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic OffsetDateTime minusNanos(long nanos)
OffsetDateTime
with the specified period in nanoseconds subtracted.
This instance is immutable and unaffected by this method call.
nanos
- the nanos to subtract, may be negativeOffsetDateTime
based on this date-time with the nanoseconds subtracted, not nullDateTimeException
- if the result exceeds the supported date rangepublic <R> R query(TemporalQuery<R> query)
This queries this date-time using the specified query strategy object.
The TemporalQuery
object defines the logic to be used to
obtain the result. Read the documentation of the query to understand
what the result of this method will be.
The result of this method is obtained by invoking the
TemporalQuery.queryFrom(TemporalAccessor)
method on the
specified query passing this
as the argument.
query
in interface TemporalAccessor
R
- the type of the resultquery
- the query to invoke, not nullDateTimeException
- if unable to query (defined by the query)ArithmeticException
- if numeric overflow occurs (defined by the query)public Temporal adjustInto(Temporal temporal)
This returns a temporal object of the same observable type as the input with the offset, date and time changed to be the same as this.
The adjustment is equivalent to using Temporal.with(TemporalField, long)
three times, passing ChronoField.EPOCH_DAY
,
ChronoField.NANO_OF_DAY
and ChronoField.OFFSET_SECONDS
as the fields.
In most cases, it is clearer to reverse the calling pattern by using
Temporal.with(TemporalAdjuster)
:
// these two lines are equivalent, but the second approach is recommended temporal = thisOffsetDateTime.adjustInto(temporal); temporal = temporal.with(thisOffsetDateTime);
This instance is immutable and unaffected by this method call.
adjustInto
in interface TemporalAdjuster
temporal
- the target object to be adjusted, not nullDateTimeException
- if unable to make the adjustmentArithmeticException
- if numeric overflow occurspublic long until(Temporal endExclusive, TemporalUnit unit)
This calculates the amount of time between two OffsetDateTime
objects in terms of a single TemporalUnit
.
The start and end points are this
and the specified date-time.
The result will be negative if the end is before the start.
For example, the period in days between two date-times can be calculated
using startDateTime.until(endDateTime, DAYS)
.
The Temporal
passed to this method is converted to a
OffsetDateTime
using from(TemporalAccessor)
.
If the offset differs between the two date-times, the specified
end date-time is normalized to have the same offset as this date-time.
The calculation returns a whole number, representing the number of complete units between the two date-times. For example, the period in months between 2012-06-15T00:00Z and 2012-08-14T23:59Z will only be one month as it is one minute short of two months.
There are two equivalent ways of using this method.
The first is to invoke this method.
The second is to use TemporalUnit.between(Temporal, Temporal)
:
// these two lines are equivalent amount = start.until(end, MONTHS); amount = MONTHS.between(start, end);The choice should be made based on which makes the code more readable.
The calculation is implemented in this method for ChronoUnit
.
The units NANOS
, MICROS
, MILLIS
, SECONDS
,
MINUTES
, HOURS
and HALF_DAYS
, DAYS
,
WEEKS
, MONTHS
, YEARS
, DECADES
,
CENTURIES
, MILLENNIA
and ERAS
are supported.
Other ChronoUnit
values will throw an exception.
If the unit is not a ChronoUnit
, then the result of this method
is obtained by invoking TemporalUnit.between(Temporal, Temporal)
passing this
as the first argument and the converted input temporal
as the second argument.
This instance is immutable and unaffected by this method call.
until
in interface Temporal
endExclusive
- the end date, exclusive, which is converted to an OffsetDateTime
, not nullunit
- the unit to measure the amount in, not nullDateTimeException
- if the amount cannot be calculated, or the end
temporal cannot be converted to an OffsetDateTime
UnsupportedTemporalTypeException
- if the unit is not supportedArithmeticException
- if numeric overflow occurspublic String format(DateTimeFormatter formatter)
This date-time will be passed to the formatter to produce a string.
formatter
- the formatter to use, not nullDateTimeException
- if an error occurs during printingpublic ZonedDateTime atZoneSameInstant(ZoneId zone)
ZonedDateTime
ensuring that the result has the same instant.
This returns a ZonedDateTime
formed from this date-time and the specified time-zone.
This conversion will ignore the visible local date-time and use the underlying instant instead.
This avoids any problems with local time-line gaps or overlaps.
The result might have different values for fields such as hour, minute an even day.
To attempt to retain the values of the fields, use atZoneSimilarLocal(ZoneId)
.
To use the offset as the zone ID, use toZonedDateTime()
.
zone
- the time-zone to use, not nullpublic ZonedDateTime atZoneSimilarLocal(ZoneId zone)
ZonedDateTime
trying to keep the same local date and time.
This returns a ZonedDateTime
formed from this date-time and the specified time-zone.
Where possible, the result will have the same local date-time as this object.
Time-zone rules, such as daylight savings, mean that not every time on the
local time-line exists. If the local date-time is in a gap or overlap according to
the rules then a resolver is used to determine the resultant local time and offset.
This method uses ZonedDateTime.ofLocal(LocalDateTime, ZoneId, ZoneOffset)
to retain the offset from this instance if possible.
Finer control over gaps and overlaps is available in two ways.
If you simply want to use the later offset at overlaps then call
ZonedDateTime.withLaterOffsetAtOverlap()
immediately after this method.
To create a zoned date-time at the same instant irrespective of the local time-line,
use atZoneSameInstant(ZoneId)
.
To use the offset as the zone ID, use toZonedDateTime()
.
zone
- the time-zone to use, not nullpublic OffsetTime toOffsetTime()
OffsetTime
.
This returns an offset time with the same local time and offset.
public ZonedDateTime toZonedDateTime()
ZonedDateTime
using the offset as the zone ID.
This creates the simplest possible ZonedDateTime
using the offset
as the zone ID.
To control the time-zone used, see atZoneSameInstant(ZoneId)
and
atZoneSimilarLocal(ZoneId)
.
public Instant toInstant()
Instant
.
This returns an Instant
representing the same point on the
time-line as this date-time.
Instant
representing the same instant, not nullpublic long toEpochSecond()
This allows this date-time to be converted to a value of the
epoch-seconds
field. This is primarily
intended for low-level conversions rather than general application usage.
public int compareTo(OffsetDateTime other)
OffsetDateTime
to another date-time.
The comparison is based on the instant then on the local date-time.
It is "consistent with equals", as defined by Comparable
.
For example, the following is the comparator order:
2008-12-03T10:30+01:00
2008-12-03T11:00+01:00
2008-12-03T12:00+02:00
2008-12-03T11:30+01:00
2008-12-03T12:00+01:00
2008-12-03T12:30+01:00
equals()
.compareTo
in interface Comparable<OffsetDateTime>
other
- the other date-time to compare to, not nullpublic boolean isAfter(OffsetDateTime other)
This method differs from the comparison in compareTo(java.time.OffsetDateTime)
and equals(java.lang.Object)
in that it
only compares the instant of the date-time. This is equivalent to using
dateTime1.toInstant().isAfter(dateTime2.toInstant());
.
other
- the other date-time to compare to, not nullpublic boolean isBefore(OffsetDateTime other)
This method differs from the comparison in compareTo(java.time.OffsetDateTime)
in that it
only compares the instant of the date-time. This is equivalent to using
dateTime1.toInstant().isBefore(dateTime2.toInstant());
.
other
- the other date-time to compare to, not nullpublic boolean isEqual(OffsetDateTime other)
This method differs from the comparison in compareTo(java.time.OffsetDateTime)
and equals(java.lang.Object)
in that it only compares the instant of the date-time. This is equivalent to using
dateTime1.toInstant().equals(dateTime2.toInstant());
.
other
- the other date-time to compare to, not nullpublic boolean equals(Object obj)
The comparison is based on the local date-time and the offset.
To compare for the same instant on the time-line, use isEqual(java.time.OffsetDateTime)
.
Only objects of type OffsetDateTime
are compared, other types return false.
equals
in class Object
obj
- the object to check, null returns falseObject.hashCode()
,
HashMap
public int hashCode()
hashCode
in class Object
Object.equals(java.lang.Object)
,
System.identityHashCode(java.lang.Object)
public String toString()
String
, such as 2007-12-03T10:15:30+01:00
.
The output will be one of the following ISO-8601 formats:
uuuu-MM-dd'T'HH:mmXXXXX
uuuu-MM-dd'T'HH:mm:ssXXXXX
uuuu-MM-dd'T'HH:mm:ss.SSSXXXXX
uuuu-MM-dd'T'HH:mm:ss.SSSSSSXXXXX
uuuu-MM-dd'T'HH:mm:ss.SSSSSSSSSXXXXX
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