What does HST stand for?

HST stands for Hawaii Standard Time. It is UTC-10, used in Hawaii. Hawaii does not observe daylight saving, so it stays on HST all year.

What is the UTC offset of HST?

HST (Hawaii Standard Time) is UTC-10, meaning it is 10 hours behind Coordinated Universal Time.

Does HST change for daylight saving time?

Regions on HST generally keep this offset year-round rather than switching for daylight saving.

HST — Hawaii Standard Time

HST

Hawaii Standard Time

UTC-10 Standard time

Hawaii

Now in Honolulu: 9:59 PM

Quick facts

Abbreviation: HST
Full name: Hawaii Standard Time
UTC offset: UTC-10
Type: Standard time
Used in: Hawaii
Example zone: Pacific/Honolulu

Cities that use HST

Time in Honolulu

About HST

HST is the abbreviation for Hawaii Standard Time, a time zone offset of UTC-10. It applies in Hawaii.

Hawaii does not observe daylight saving, so it stays on HST all year.

Time-zone abbreviations are convenient but not unique or official — several codes are shared by more than one zone. When precision matters, use the underlying IANA zone name (for example Pacific/Honolulu) or the UTC offset UTC-10 instead.

Frequently asked questions

What does HST stand for?: HST stands for Hawaii Standard Time. It is UTC-10, used in Hawaii. Hawaii does not observe daylight saving, so it stays on HST all year.
What is the UTC offset of HST?: HST (Hawaii Standard Time) is UTC-10, meaning it is 10 hours behind Coordinated Universal Time.
Does HST change for daylight saving time?: Regions on HST generally keep this offset year-round rather than switching for daylight saving.