Hawaii-Aleutian Daylight Time is 1 hour ahead of Hawaii Standard Time
So 12:00 pm12:00 in HADT is 11:00 am11:00 in HST
12:00 pm12:00 Hawaii-Aleutian Daylight Time (HADT). Offset UTC -9:00 hours
11:00 am11:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours
12:00 pm12:00 HADT / 11:00 am11:00 HST
Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific
Countries: It is used in following countries: United States
Principal Cities: The largest city in the HST timezone is Honolulu from USA with population about 371657 people. Other major cities in the area are Pearl City, Hilo, Kailua, Waipahu
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Hawaii Daylight Time (HDT).
Start: HST started and clocks were set one hour back on Sunday, November 3, 2019, at 2:00 (2:00 am) local time.
End: HST ends and clocks are set one hour forward on Sunday, March 8, 2020, at 2:00 (2:00 am) local time.
HST representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -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.
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
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