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List of tz database time zones

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List of tz database time zones

Summary

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This is a list of time zones from release of the tz database.

Legend

Type

  • CanonicalThe primary, preferred zone name.
  • LinkAn alternative name (alias) which links to a canonical zone.
  • LinkA standard Link (as above). The dagger symbol (†) signifies that the zone was canonical in a previous version of the database. Historical data for such zones is still preserved in the source code, but it is not included when compiling the database with standard options.

UTC offset

Standard Time (SDT) and Daylight Saving Time (DST) offsets from UTC in hours and minutes.

For zones in which Daylight Saving is not observed, the DST offset shown in this table is a simple duplication of the SDT offset.

The UTC offsets are based on the current or upcoming database rules. This table does not attempt to document any of the historical data which resides in the database.

In Ireland, what Irish law designates as "standard time" is observed during the summer, with clocks turned one hour ahead of UTC. The SDT column shows the offset from UTC during the winter, even in Ireland, where that's referred to as "winter time", and the DST column shows the offset from UTC during the summer, even in Ireland, where that's referred to as "standard time".

Time zone abbreviations

Time zone abbreviations for both Standard Time and Daylight Saving Time are shown exactly as they appear in the database. See strftime and its "%Z" field.

Some of zone records use 3 or 4 letter abbreviations that are tied to physical time zones, others use numeric UTC offsets.

In Ireland, what Irish law designates as "standard time" is observed during the summer, with clocks turned one hour ahead of UTC. The SDT column shows the abbreviation used during the winter, even in Ireland, and the DST column shows the abbreviation used during the summer, which is "IST", where the "S" in "IST" stands for "Standard", not "Summer".

List

                                                        - 

List summaries

RegionZonesLinksTotal
Africa193554
America12148169
Antarctica8412
Asia742599
Atlantic8412
Australia111223
Europe382664
Indian3811
Pacific301444
Etc28735
Other17475
Total341257598
Source
FileZonesLinksTotal
factory101
africa20020
antarctica606
asia58058
australasia39039
etcetera28129
europe65065
northamerica78078
southamerica46046
backward0256256
Total341257598

Notes

References

References

  1. Siroky, Evan. (1 January 2024). "Time Zone Boundary Builder".
  2. (2017-02-28). "Time Zone Database". [[IANA]].
  3. "Standard Time Act, 1968".
  4. "Standard Time (Amendment) Act, 1971".
  5. "Time Zone & Clock Changes in Troll Station, Antarctica".
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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