Hawaii-Aleutian Standard Time (HST) is the time zone used in the U.S. state of Hawaii and most of the Aleutian Islands in Alaska. It is 10 hours behind Coordinated Universal Time (UTC−10).
Unlike most parts of the United States, Hawaii does not observe daylight saving time, meaning the time remains consistent throughout the year. However, parts of the Aleutian Islands do observe daylight saving time and switch to Hawaii-Aleutian Daylight Time (HADT), UTC−9.
Major locations using HST include Honolulu, Hilo, Kailua, and Pearl City.
Current Time in HST
Quick Facts
- Time Zone: Hawaii-Aleutian Standard Time (HST)
- UTC Offset: UTC −10
- Daylight Saving Time: Not observed in Hawaii (observed in parts of Aleutian Islands)
- Region: Hawaii (USA), Aleutian Islands (Alaska)
- Major Cities: Honolulu, Hilo, Kailua
Time Difference From HST
Examples of time differences compared to HST:
- New York: +5 hours ahead
- London: +10 hours ahead
- Dubai: +14 hours ahead
- Tokyo: +19 hours ahead
- Sydney: +21 hours ahead
Daylight Saving Time
Hawaii does not observe Daylight Saving Time.
However, parts of the Aleutian Islands switch to Hawaii-Aleutian Daylight Time (HADT) during summer:
HADT Offset: UTC −9
DST typically follows U.S. rules:
- Second Sunday in March
- First Sunday in November
Frequently Asked Questions
What does HST stand for?
HST stands for Hawaii-Aleutian Standard Time.
Which areas use HST?
HST is used in Hawaii and parts of the Aleutian Islands in Alaska.
Does Hawaii observe daylight saving time?
No. Hawaii keeps the same time all year.
What is the difference between HST and PST?
HST is 2 hours behind Pacific Standard Time (PST).
Where HST Is Used
Hawaii-Aleutian Standard Time is used in:
Hawaii:
Aleutian Islands (part):
- Adak
- Atka
Additional Note
Because Hawaii is located near the equator, daylight hours remain relatively consistent throughout the year. This is one of the main reasons why the state does not observe daylight saving time.
