UTC−10:00

UTC−10: Blue (December), Orange (June), Yellow (all year round), Light Blue - Sea areas

UTC−10:00 is an identifier for a time offset from UTC of −10. This time is used in:

As standard time (all year round)

• Cook Islands (NZ)
• French Polynesia
  • Society Islands including Tahiti,
  • Tuamotu Archipelago, and
  • Austral and Bass Islands
• United States (HST—Hawaii-Aleutian Standard Time)
  • Hawaii
  • Johnston Atoll

As standard time (Northern Hemisphere winter)

• United States (HAST—Hawaii-Aleutian Standard Time)
  • Alaska
    • Aleutian Islands (Alaska west of 169° 30′ West)

Previous use

As standard time (all year round)

• Tokelau (NZ) (until December 29, 2011, now UTC+14)

As daylight saving time (Northern Hemisphere winter)

• United States
  • Central Alaska (until April 1983)

As daylight saving time (Southern Hemisphere summer)

• Samoa (until December 29, 2011, now UTC+14 during daylight saving time)