ZonedDateTime Class
Definition
Important
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A date-time with a time-zone in the ISO-8601 calendar system,
such as 2007-12-03T10:15:30+01:00 Europe/Paris.
[Android.Runtime.Register("java/time/ZonedDateTime", ApiSince=26, DoNotGenerateAcw=true)]
public sealed class ZonedDateTime : Java.Lang.Object, IDisposable, Java.IO.ISerializable, Java.Time.Chrono.IChronoZonedDateTime[<Android.Runtime.Register("java/time/ZonedDateTime", ApiSince=26, DoNotGenerateAcw=true)>]
type ZonedDateTime = class
inherit Object
interface ISerializable
interface IJavaObject
interface IDisposable
interface IJavaPeerable
interface IChronoZonedDateTime
interface IComparable
interface ITemporal
interface ITemporalAccessor- Inheritance
- Attributes
- Implements
Remarks
A date-time with a time-zone in the ISO-8601 calendar system, such as 2007-12-03T10:15:30+01:00 Europe/Paris.
ZonedDateTime is an immutable representation of a date-time with a time-zone. This class stores all date and time fields, to a precision of nanoseconds, and a time-zone, with a zone offset used to handle ambiguous local date-times. For example, the value "2nd October 2007 at 13:45.30.123456789 +02:00 in the Europe/Paris time-zone" can be stored in a ZonedDateTime.
This class handles conversion from the local time-line of LocalDateTime to the instant time-line of Instant. The difference between the two time-lines is the offset from UTC/Greenwich, represented by a ZoneOffset.
Converting between the two time-lines involves calculating the offset using the ZoneRules rules accessed from the ZoneId. Obtaining the offset for an instant is simple, as there is exactly one valid offset for each instant. By contrast, obtaining the offset for a local date-time is not straightforward. There are three cases: <ul> <li>Normal, with one valid offset. For the vast majority of the year, the normal case applies, where there is a single valid offset for the local date-time.</li> <li>Gap, with zero valid offsets. This is when clocks jump forward typically due to the spring daylight savings change from "winter" to "summer". In a gap there are local date-time values with no valid offset.</li> <li>Overlap, with two valid offsets. This is when clocks are set back typically due to the autumn daylight savings change from "summer" to "winter". In an overlap there are local date-time values with two valid offsets.</li> </ul>
Any method that converts directly or implicitly from a local date-time to an instant by obtaining the offset has the potential to be complicated.
For Gaps, the general strategy is that if the local date-time falls in the middle of a Gap, then the resulting zoned date-time will have a local date-time shifted forwards by the length of the Gap, resulting in a date-time in the later offset, typically "summer" time.
For Overlaps, the general strategy is that if the local date-time falls in the middle of an Overlap, then the previous offset will be retained. If there is no previous offset, or the previous offset is invalid, then the earlier offset is used, typically "summer" time.. Two additional methods, #withEarlierOffsetAtOverlap() and #withLaterOffsetAtOverlap(), help manage the case of an overlap.
In terms of design, this class should be viewed primarily as the combination of a LocalDateTime and a ZoneId. The ZoneOffset is a vital, but secondary, piece of information, used to ensure that the class represents an instant, especially during a daylight savings overlap.
Added in 1.8.
Java documentation for java.time.ZonedDateTime.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Properties
| Name | Description |
|---|---|
| Class |
Returns the runtime class of this |
| DayOfMonth |
Gets the day-of-month field. |
| DayOfWeek |
Gets the day-of-week field, which is an enum DayOfWeek. |
| DayOfYear |
Gets the day-of-year field. |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| Hour |
Gets the hour-of-day field. |
| JniIdentityHashCode |
Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object) |
| JniManagedPeerState | (Inherited from JavaObject) |
| JniPeerMembers | |
| Minute |
Gets the minute-of-hour field. |
| Month |
Gets the month-of-year field using the Month enum. |
| MonthValue |
Gets the month-of-year field from 1 to 12. |
| Nano |
Gets the nano-of-second field. |
| Offset |
Gets the zone offset, such as '+01:00'. |
| PeerReference |
Gets the JNI object reference for this Java peer. (Inherited from Object) |
| Second |
Gets the second-of-minute field. |
| ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
| ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from Object) |
| Year |
Gets the year field. |
| Zone |
Gets the time-zone, such as 'Europe/Paris'. |
Methods
| Name | Description |
|---|---|
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| CompareTo(Object) | |
| Construct(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| Dispose() |
Releases the resources held by this Java peer. (Inherited from Object) |
| Dispose(Boolean) |
Releases the resources held by this Java peer. (Inherited from Object) |
| DisposeUnlessReferenced() | (Inherited from JavaObject) |
| Equals(Object) | (Inherited from JavaObject) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| Format(DateTimeFormatter) |
Formats this date-time using the specified formatter. |
| From(ITemporalAccessor) |
Obtains an instance of ZonedDateTime from a temporal object. |
| Get(ITemporalField) |
Gets the value of the specified field from this date-time as an int. |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| GetLong(ITemporalField) |
Gets the value of the specified field from this date-time as a long. |
| IsSupported(ITemporalField) |
Checks if the specified field is supported. |
| IsSupported(ITemporalUnit) |
Checks if the specified unit is supported. |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Minus(Int64, ITemporalUnit) |
Returns a copy of this date-time with the specified amount subtracted. |
| Minus(ITemporalAmount) |
Returns a copy of this date-time with the specified amount subtracted. |
| MinusDays(Int64) |
Returns a copy of this ZonedDateTime with the specified number of days subtracted. |
| MinusHours(Int64) |
Returns a copy of this ZonedDateTime with the specified number of hours subtracted. |
| MinusMinutes(Int64) |
Returns a copy of this ZonedDateTime with the specified number of minutes subtracted. |
| MinusMonths(Int64) |
Returns a copy of this ZonedDateTime with the specified number of months subtracted. |
| MinusNanos(Int64) |
Returns a copy of this ZonedDateTime with the specified number of nanoseconds subtracted. |
| MinusSeconds(Int64) |
Returns a copy of this ZonedDateTime with the specified number of seconds subtracted. |
| MinusWeeks(Int64) |
Returns a copy of this ZonedDateTime with the specified number of weeks subtracted. |
| MinusYears(Int64) |
Returns a copy of this ZonedDateTime with the specified number of years subtracted. |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| Now() | |
| Now(Clock) |
Obtains the current date-time from the specified clock. |
| Now(ZoneId) |
Obtains the current date-time from the system clock in the specified time-zone. |
| Of(Int32, Int32, Int32, Int32, Int32, Int32, Int32, ZoneId) |
Obtains an instance of ZonedDateTime from a year, month, day, hour, minute, second, nanosecond and time-zone. |
| Of(LocalDate, LocalTime, ZoneId) |
Obtains an instance of ZonedDateTime from a local date and time. |
| Of(LocalDateTime, ZoneId) |
Obtains an instance of ZonedDateTime from a local date-time. |
| OfInstant(Instant, ZoneId) |
Obtains an instance of ZonedDateTime from an Instant. |
| OfInstant(LocalDateTime, ZoneOffset, ZoneId) |
Obtains an instance of ZonedDateTime from the instant formed by combining the local date-time and offset. |
| OfLocal(LocalDateTime, ZoneId, ZoneOffset) |
Obtains an instance of ZonedDateTime from a local date-time using the preferred offset if possible. |
| OfStrict(LocalDateTime, ZoneOffset, ZoneId) |
Obtains an instance of ZonedDateTime strictly validating the combination of local date-time, offset and zone ID. |
| Parse(ICharSequence, DateTimeFormatter) |
Obtains an instance of ZonedDateTime from a text string using a specific formatter. |
| Parse(ICharSequence) |
Obtains an instance of ZonedDateTime from a text string such as 2007-12-03T10:15:30+01:00[Europe/Paris]. |
| Parse(String, DateTimeFormatter) | |
| Parse(String) | |
| Plus(Int64, ITemporalUnit) |
Returns a copy of this date-time with the specified amount added. |
| Plus(ITemporalAmount) |
Returns a copy of this date-time with the specified amount added. |
| PlusDays(Int64) |
Returns a copy of this ZonedDateTime with the specified number of days added. |
| PlusHours(Int64) |
Returns a copy of this ZonedDateTime with the specified number of hours added. |
| PlusMinutes(Int64) |
Returns a copy of this ZonedDateTime with the specified number of minutes added. |
| PlusMonths(Int64) |
Returns a copy of this ZonedDateTime with the specified number of months added. |
| PlusNanos(Int64) |
Returns a copy of this ZonedDateTime with the specified number of nanoseconds added. |
| PlusSeconds(Int64) |
Returns a copy of this ZonedDateTime with the specified number of seconds added. |
| PlusWeeks(Int64) |
Returns a copy of this ZonedDateTime with the specified number of weeks added. |
| PlusYears(Int64) |
Returns a copy of this ZonedDateTime with the specified number of years added. |
| Query(ITemporalQuery) |
Queries this date-time using the specified query. |
| Range(ITemporalField) |
Gets the range of valid values for the specified field. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetPeerReference(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| ToArray<T>() |
Creates a managed array from this Java array wrapper. (Inherited from Object) |
| ToLocalDate() |
Gets the LocalDate part of this date-time. |
| ToLocalDateTime() |
Gets the LocalDateTime part of this date-time. |
| ToLocalTime() |
Gets the LocalTime part of this date-time. |
| ToOffsetDateTime() |
Converts this date-time to an OffsetDateTime. |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| TruncatedTo(ITemporalUnit) |
Returns a copy of this ZonedDateTime with the time truncated. |
| UnregisterFromRuntime() |
Unregisters this Java peer from the interop runtime. (Inherited from Object) |
| Until(ITemporal, ITemporalUnit) |
Calculates the amount of time until another date-time in terms of the specified unit. |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| With(ITemporalAdjuster) |
Returns an adjusted copy of this date-time. |
| With(ITemporalField, Int64) |
Returns a copy of this date-time with the specified field set to a new value. |
| WithDayOfMonth(Int32) |
Returns a copy of this ZonedDateTime with the day-of-month altered. |
| WithDayOfYear(Int32) |
Returns a copy of this ZonedDateTime with the day-of-year altered. |
| WithEarlierOffsetAtOverlap() |
Returns a copy of this date-time changing the zone offset to the earlier of the two valid offsets at a local time-line overlap. |
| WithFixedOffsetZone() |
Returns a copy of this date-time with the zone ID set to the offset. |
| WithHour(Int32) |
Returns a copy of this ZonedDateTime with the hour-of-day altered. |
| WithLaterOffsetAtOverlap() |
Returns a copy of this date-time changing the zone offset to the later of the two valid offsets at a local time-line overlap. |
| WithMinute(Int32) |
Returns a copy of this ZonedDateTime with the minute-of-hour altered. |
| WithMonth(Int32) |
Returns a copy of this ZonedDateTime with the month-of-year altered. |
| WithNano(Int32) |
Returns a copy of this ZonedDateTime with the nano-of-second altered. |
| WithSecond(Int32) |
Returns a copy of this ZonedDateTime with the second-of-minute altered. |
| WithYear(Int32) |
Returns a copy of this ZonedDateTime with the year altered. |
| WithZoneSameInstant(ZoneId) |
Returns a copy of this date-time with a different time-zone, retaining the instant. |
| WithZoneSameLocal(ZoneId) |
Returns a copy of this date-time with a different time-zone, retaining the local date-time if possible. |
Explicit Interface Implementations
Extension Methods
| Name | Description |
|---|---|
| GetJniTypeName(IJavaPeerable) |
Gets the JNI name of the type of the instance |
| JavaAs<TResult>(IJavaPeerable) |
Try to coerce |
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| TryJavaCast<TResult>(IJavaPeerable, TResult) |
Try to coerce |