UTC−10:00
{{Short description|Time zone}}
{{Refimprove|date=December 2009}}
{{Infobox time zone | UTC = yes}}
UTC−10:00 is an identifier for a time offset from UTC of −10:00. This time is used in Hawaii, Alaska, French Polynesia, and the Cook Islands.{{cite web|url=http://www.worldtimezone.com/wtz-names/wtz-ckt.htmlWorld|title=Time Zone Abbreviations: CKT|access-date=2015-02-16|archive-date=2019-12-16|archive-url=https://web.archive.org/web/20191216035658/https://www.worldtimezone.com/wtz-names/wtz-ckt.htmlWorld|url-status=dead}}
As standard time (year-round)
=Oceania=
==Pacific Ocean==
===Polynesia===
- France
- French Polynesia
- Society Islands
- Leeward Islands
- Windward Islands
- Tuamotus
- Disappointment Islands
- Duke of Gloucester Islands
- Far East Tuamotu Group
- Hao Group
- Hikeru Group
- King George Islands
- Palliser Islands
- Raeffsky Islands
- Gambier Islands
- Outer Gambier Group
- Acteon Group
- Austral Islands
- Tupua'i Islands
- Bass Islands
- New Zealand
- Cook Islands
- United States (Hawaii–Aleutian Time Zone)
- Hawaii
- United States Minor Outlying Islands
- Johnston Atoll
As standard time (Northern Hemisphere winter)
=North America=
- United States
- Alaska
- Aleutian Islands west of 169.30°W
- Andreanof Islands
- Islands of Four Mountains
- Near Islands
- Rat Islands
Historical changes
- Kiribati
- Line Islands – including Kiritimati (Christmas Island) advanced 24 hours (to UTC+14:00) to the eastern hemisphere side of the International Date Line by skipping December 31, 1994.
- Samoa – Time in Samoa advanced 24 hours (to UTC+14:00) to the eastern hemisphere side of the International Date Line by skipping December 30, 2011.