Avarua, Cook Islands

Offset: -10 is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific

Countries: It is used in following countries: Cook Islands, French Polynesia

Principal Cities: The largest city in the -10 timezone is Faaa from French Polynesia with population about 29851 people. Other major cities in the area are Papeete, Punaauia, Avarua

Daylight Saving: (-10) is not adjusted for daylight saving therefore -10 remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, remains the same

Avarua, Cook Islands representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -10 - basic short
  • -1000 - basic
  • -10:00 - extended

Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the west of the zero meridian.

Military/NATO: Used by the U.S. military, Chinese military and others
  • Whiskey - Military abbreviation for -10
  • W - short form of 'Whiskey'

IANA/Olson: Reflects -10 time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/GMT+10
  • Pacific/Rarotonga
  • Pacific/Tahiti

Time zones with the GMT -10 offset:

  • HAST - Hawaii-Aleutian Standard Time
  • CKT - Cook Island Time
  • HST - Hawaii Standard Time
  • TAHT - Tahiti Time
  • W - Whiskey Time Zone