UTC−12:00
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Find sources: "UTC−12:00" – news · newspapers · books · scholar · JSTOR (January 2008) (Learn how and when to remove this message)
| UTC−12:00 | |
|---|---|
| Time zone | |
| World map with the time zone highlighted | |
| UTC offset | |
| UTC | UTC−12:00 |
| Current time | |
| 17:07, 14 November 2025 UTC−12:00 [refresh] | |
| Central meridian | |
| 180 degrees | |
| Date-time group | |
| Y | |
UTC−12:00 is an identifier for a time offset from UTC of −12:00. It is the last to enter a New Year, and is sometimes referred to as the International Date Line West (IDLW) time zone.[1]
Characteristics
[edit ]UTC−12:00 is a nautical time zone comprising the high seas between 180° and 172°30′W longitude, and the time is obtained by subtracting twelve hours from Coordinated Universal Time (UTC). No inhabited territory lies within this time zone offset, either as standard time or daylight saving time; it only comprises the United States Minor Outlying Islands, specifically Baker Island and Howland Island (strict nature reserves belonging to the United States), as standard time.[2] [3] It is therefore also sometimes known as Baker Island Time (BIT).[4]
A number of inhabited territories lie within the longitudinal limits of this time zone. These are Tonga, Wallis and Futuna and Chatham Islands as well as parts of Chukotka Autonomous Okrug of Russia, the US state of Alaska, Fiji, Tokelau and Samoa. However, none of them keep the date and time of UTC−12:00. Instead, they keep the time and date (or just the date) of one of the neighboring zones, usually because they belong, politically, to a country which lies mostly in the neighboring time zone.
The International Date Line West (IDLW) time zone represents the last place on Earth a particular time and date exists, it is also referred to as Anywhere on Earth (AoE).[5] A deadline specified as "Anywhere on Earth" has not passed if there is a place on Earth where the deadline has not passed, which is equivalent to the statement that the deadline has not passed in the UTC−12:00 zone.[1]
See also
[edit ]- Greenwich Mean Time
- Howland and Baker Islands
- International Date Line
- UTC+12:00, which is exactly one day ahead of UTC−12:00.
- UTC+14:00
- Anywhere on Earth
References
[edit ]- ^ a b "IEEE 802.16 AOE Deadline Documentation". IEEE 802 LAN/MAN Standards Committee. Retrieved 1 January 2024.
- ^ "UTC-12 time zone". 24 Timezones. 3 June 2023.
- ^ "List of time zones". IBM Cloud Pak System W4600. Retrieved 2025年09月28日.
- ^ "UTC-12". 24 TimeZones. Retrieved 18 October 2025.
- ^ "Anywhere on Earth now". time.is. Retrieved 2025年09月28日.
External links
[edit ]- Media related to UTC−12:00 at Wikimedia Commons
