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This is a list of time zone abbreviations.
Time zones are often represented by alphabetic abbreviations such as "EST", "WST", and "CST", but these are not part of the international time and date standard ISO 8601 and their use as sole designator for a time zone is discouraged.
Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in an earlier era, they were sufficiently unambiguous for many practical uses within a national context (for example, in railway timetables and business correspondence), but their ambiguity explains their deprecation in the internet era, when communications more often cannot rely on implicit geographic context to supply part of the meaning.
- ^ "ALMT – Alma-Ata Time (Time Zone Abbreviation)". www.timeanddate.com. Retrieved 2019-03-04.
- ^ "AMST – Amazon Summer Time". Time and Date AS. Retrieved 2013-08-18.
- ^ "AMT – Amazon Time". Time and Date AS. Retrieved 2013-08-18.
- ^ "ANAT – Anadyr Time (Time Zone Abbreviation)". www.timeanddate.com. Retrieved 2019-03-03.
- ^ "AQTT – Aqtobe Time (Time Zone Abbreviation)". www.timeanddate.com. Retrieved 2019-03-04.
- ^ "Time Change in Papua New Guinea, 28 December 2014". TimeandDate.com. Retrieved 27 April 2015.
- ^ "CDT – Cuba Daylight Time". Time and Date AS. Retrieved 2012-10-28.
- ^ Standard Time Act 1968, s. 1: Standard time (No. 23 of 1968, s. 1). Enacted on 15 July 1968. Act of the Oireachtas. Retrieved from Irish Statute Book.
- ^ "NOVT – Novosibirsk Time (Time Zone Abbreviation)". www.timeanddate.com. Retrieved 2019-03-04.
- ^ "World Times". Retrieved 29 October 2024.
During the southern summer, New Zealand has Daylight Saving Time (NZDST) which is defined as UTC + 13 hours.
- ^ "PWT – Palau Time (Standard Time)". Time and Date AS. Retrieved 2021-01-26.
- ^ "PYST – Paraguay Summer Time". Time and Date AS. Retrieved 2013-08-18.
- ^ "PYT – Paraguay Time". Time and Date AS. Retrieved 2013-08-18.
- ^ "TFT – French Southern and Antarctic Time (Time Zone Abbreviation)". www.timeanddate.com. Retrieved 2019-01-02.
- ^ "WGST – West Greenland Summer Time (Time Zone Abbreviation)". www.timeanddate.com. Retrieved 2019-02-07.
- ^ "WGT – West Greenland Time (Time Zone Abbreviation)". www.timeanddate.com. Retrieved 2019-02-07.
- ^ "Time Zone Abbreviations - Worldwide List". timeanddate.com. Retrieved 2021-01-08.
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