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Template:Daylight saving active/doc

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This template returns either 0 or 1 to indicate if daylight saving time (DST) is active in the given time zone region:

 0  DST is not active
 1  DST is active

See below for the currently supported time zones. Note that if DST is only partially observed in a certain time zone, this template returns 1 if DST is active in that part (even though it is not observed/active in the other part).

During DST, the clock is set one hour ahead of standard time.

{{Daylight saving in time zone | time zone abbreviation | date/time value}}

Template parameters

This template prefers inline formatting of parameters.

ParameterDescriptionTypeStatus
time zone abbreviation1

Abbreviation of the time zone for which it is determined if DST is active. If no time zone is given or if the given time zone is not supported, then the output will default to 0.

Example
CET
Stringsuggested
date/time value2

Date and time for which it is determined if DST would be active in the given time zone. By default, if no value is given, it is determined if DST is active at the current time.

Example
6 April 2018 23:00 CET
Dateoptional

Supported time zones

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From the list of time zone abbreviations, the following time zones are currently supported:

SDT - Abbreviations - DST Name SDT - Offset - DST Notes
HST Hawaii Standard Time UTC−10:00 The *T, *ST and *DT variants of a particular time zone are considered the same region and will produce the same output, thus they can be used interchangeably.

DST is not observed in Hawaii and in Saskatchewan, Canada (except Lloydminster, SK, where MST/MDT is observed).

More details on the implementation→

HAT or HAST HADT Hawaii-Aleutian Standard/Daylight Time UTC−10:00 UTC−09:00
AKT or AKST AKDT Alaska Standard/Daylight Time UTC−09:00 UTC−08:00
PT or PST PDT Pacific Standard/Daylight Time UTC−08:00 UTC−07:00
MT or MST MDT Mountain Standard/Daylight Time UTC−07:00 UTC−06:00
SKT or SKST Saskatchewan Standard Time UTC−06:00
CT or CST CDT Central Standard/Daylight Time UTC−06:00 UTC−05:00
ET or EST EDT Eastern Standard/Daylight Time UTC−05:00 UTC−04:00
AT or AST ADT Atlantic Standard/Daylight Time UTC−04:00 UTC−03:00
NT or NST NDT Newfoundland Standard/Daylight Time UTC−03:30 UTC−02:30
GMT BST Greenwich Mean Time /
British Summer Time
UTC 00:00 UTC 01:00 Both the GMT and BST variants of this time zone are considered the same region and will produce the same output, thus they can be used interchangeably.

This time zone is essentially the same as WET/WEST, see below for more details.

WET WEST Western European (Summer) Time UTC 00:00 UTC 01:00 Both the *ET and *EST variants of a particular time zone are considered the same region and will produce the same output, thus they can be used interchangeably.

More details on the implementation→

CET CEST Central European (Summer) Time UTC 01:00 UTC 02:00
EET EEST Eastern European (Summer) Time UTC 02:00 UTC 03:00
AWT or AWST Australian Western Standard Time UTC 08:00 The *T, *ST and *DT variants of a particular time zone are considered the same region and will produce the same output, thus they can be used interchangeably.

DST is not observed in the AWT time zone.

More details on the implementation→

ACT or ACST ACDT Australian Central Standard/Daylight Time UTC 09:30 UTC 10:30
AET or AEST AEDT Australian Eastern Standard/Daylight Time UTC 10:00 UTC 11:00
KST Korea Standard Time UTC 09:00 DST is not observed in these time zones.
JST Japan Standard Time UTC 09:00
NZT or NZST NZDT New Zealand Standard/Daylight Time UTC 12:00 UTC 13:00 The NZT, NZST and NZDT variants of this time zone are considered the same region and will produce the same output, thus they can be used interchangeably.

More details on the implementation→

Time zone map

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Examples

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(You may want to purge this page to update the output.)


*{{Daylight saving in time zone|CET}}

produces

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*{{Daylight saving in time zone|CEST}}

produces

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*{{Daylight saving in time zone|PT}}

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*{{Daylight saving in time zone|ACT}}

produces

  • 1


*{{Daylight saving in time zone|NZT}}

produces

  • 1


*{{Daylight saving in time zone|ET|10 March 2018 10:00 EST}}

produces

  • 0


*{{Daylight saving in time zone|ET|11 March 2018 4:50 EST}}

produces

  • 1


*{{Daylight saving in time zone|ET|11 March 2018 4:50}}

produces

  • 0
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Template:Current time templates