import {SystemDefaultZoneRules} from 'js-joda/src/zone/SystemDefaultZoneRules.js'

public class | source

SystemDefaultZoneRules

Extends:

ZoneRules → SystemDefaultZoneRules

Method Summary

Public Methods
public	daylightSavings()
public	equals(other: *): boolean
public	isDaylightSavings()
public	isFixedOffset(): boolean
public	isValidOffset(dateTime: LocalDateTime, offset: ZoneOffset): boolean
public	nextTransition()
public	offsetOfEpochMilli(epochMilli: number): ZoneOffset
public	offsetOfInstant(instant: Instant): ZoneOffset
public	offsetOfLocalDateTime(localDateTime: LocalDateTime): ZoneOffset This implementation is NOT returning the best value in a gap or overlap situation as specified at ZoneRules.offsetOfLocalDateTime.
public	previousTransition()
public	standardOffset(instant: *): ZoneOffset
public	toString(): string
public	transition(): undefined
public	transitionRules()
public	transitions()
public	validOffsets(localDateTime: *): ZoneOffset[]

Inherited Summary

From class ZoneRules
public static	of(offset: ZoneOffset): ZoneRules Obtains an instance of ZoneRules that always uses the same offset.
public	daylightSavings(instant: Instant): Duration Gets the amount of daylight savings in use for the specified instant in this zone.
public	isDaylightSavings(instant: Instant): boolean Checks if the specified instant is in daylight savings.
public	isFixedOffset(): boolean Checks of the zone rules are fixed, such that the offset never varies.
public	isValidOffset(localDateTime: LocalDateTime, offset: ZoneOffset): boolean Checks if the offset date-time is valid for these rules.
public	nextTransition(instant: Instant): ZoneOffsetTransition Gets the next transition after the specified instant.
public	offset(instantOrLocalDateTime: *): ZoneOffset
public	offsetOfEpochMilli(epochMilli: number): ZoneOffset Gets the offset applicable at the specified epochMilli in these rules.
public	offsetOfInstant(instant: Instant): ZoneOffset Gets the offset applicable at the specified instant in these rules.
public	offsetOfLocalDateTime(localDateTime: LocalDateTime): ZoneOffset Gets a suitable offset for the specified local date-time in these rules.
public	previousTransition(instant: Instant): ZoneOffsetTransition Gets the previous transition before the specified instant.
public	standardOffset(instant: Instant): ZoneOffset Gets the standard offset for the specified instant in this zone.
public	transition(localDateTime: LocalDateTime): ZoneOffsetTransition Gets the offset transition applicable at the specified local date-time in these rules.
public	transitionRules(): ZoneOffsetTransitionRule[] Gets the list of transition rules for years beyond those defined in the transition list.
public	transitions(): ZoneOffsetTransition[] Gets the complete list of fully defined transitions.
public	validOffsets(localDateTime: LocalDateTime): ZoneOffset[] Gets the offset applicable at the specified local date-time in these rules.

Public Methods

public daylightSavings() source

Override:

ZoneRules#daylightSavings

Throw:

*	DateTimeException not supported

public equals(other: *): boolean source

Params:

Name	Type	Attribute	Description
other	*

Return:

boolean

public isDaylightSavings() source

Override:

ZoneRules#isDaylightSavings

Throw:

*	DateTimeException not supported

public isFixedOffset(): boolean source

Override:

ZoneRules#isFixedOffset

Return:

boolean

public isValidOffset(dateTime: LocalDateTime, offset: ZoneOffset): boolean source

Override:

ZoneRules#isValidOffset

Params:

Name	Type	Attribute	Description
dateTime	LocalDateTime
offset	ZoneOffset

Return:

boolean

public nextTransition() source

Override:

ZoneRules#nextTransition

Throw:

*	DateTimeException not supported

public offsetOfEpochMilli(epochMilli: number): ZoneOffset source

Override:

ZoneRules#offsetOfEpochMilli

Params:

Name	Type	Attribute	Description
epochMilli	number

Return:

ZoneOffset

public offsetOfInstant(instant: Instant): ZoneOffset source

Override:

ZoneRules#offsetOfInstant

Params:

Name	Type	Attribute	Description
instant	Instant

Return:

ZoneOffset

public offsetOfLocalDateTime(localDateTime: LocalDateTime): ZoneOffset source

This implementation is NOT returning the best value in a gap or overlap situation as specified at ZoneRules.offsetOfLocalDateTime.

The calculated offset depends Date.prototype.getTimezoneOffset and its not specified at the ECMA-262 specification how to handle daylight savings gaps/ overlaps.

The Chrome Browser version 49 is returning the next transition offset in a gap/overlap situation, other browsers/ engines might do it in the same way.

Override:

ZoneRules#offsetOfLocalDateTime

Params:

Name	Type	Attribute	Description
localDateTime	LocalDateTime

Return:

ZoneOffset

public previousTransition() source

Override:

ZoneRules#previousTransition

Throw:

*	DateTimeException not supported

public standardOffset(instant: *): ZoneOffset source

Override:

ZoneRules#standardOffset

Params:

Name	Type	Attribute	Description
instant	*

Return:

ZoneOffset

public toString(): string source

Return:

string

public transition(): undefined source

Override:

ZoneRules#transition

Return:

undefined

Throw:

*	DateTimeException not supported

public transitionRules() source

Override:

ZoneRules#transitionRules

Throw:

*	DateTimeException not supported

public transitions() source

Override:

ZoneRules#transitions

Throw:

*	DateTimeException not supported

public validOffsets(localDateTime: *): ZoneOffset[] source

Override:

ZoneRules#validOffsets

Params:

Name	Type	Attribute	Description
localDateTime	*

Return:

ZoneOffset[]