Current Time in HST
Hawaii-Aleutian Standard Time
About HST Hawaii-Aleutian Standard Time
The standard time used in Hawaii and the portion of the Aleutian Islands that is west of -169.5° West longitude. Hawaii does not observe daylight saving time, remaining on HST year-round. The Aleutian Islands part does observe DST (HDT).
UTC Offset: -10:00
HST at a glance
| Right now | 03:54 on Tuesday |
|---|---|
| UTC offset | UTC-09:00 (9 hours behind UTC) |
| Full name | Hawaii-Aleutian Standard Time |
| Countries | 2 |
| IANA zones | 7 |
What is HST?
HST is a time zone that is currently UTC-09:00 - that's 9 hours behind UTC. Its full name is Hawaii-Aleutian Standard Time. Right now the local time on HST is 03:54. Today 2 countries (including United States and United States Minor Outlying Islands) and 7 IANA database zones sit at this offset, which is why HST is a useful shorthand even though the exact local rules differ from place to place.
How to convert HST to UTC
For quick planning, use today's offset as a rule of thumb: 12:00 UTC = 03:00 local time, and 09:00 local time = 18:00 UTC. The live clock above is the safest reference when daylight saving or regional rules may apply.
Which countries use HST?
HST is used across United States and United States Minor Outlying Islands. Open a country to see all of its cities and their local time.
IANA time zones in HST
HST maps to the IANA database zones America/Adak, America/Atka, HST, Pacific/Honolulu, Pacific/Johnston and US/Aleutian, among 7 in total. Each zone page shows its exact rules, including any daylight saving changes.
💡 Tip: Comparing times? HST is 9 hours behind UTC. Use the IANA links and country links on this page when you need the exact local rule for a real place, not just the offset.
HST - Frequently asked questions
What is HST?
HST is a time zone currently UTC-09:00 (9 hours behind UTC). Its full name is Hawaii-Aleutian Standard Time.
What is the UTC offset of HST?
HST is UTC-09:00 right now - 9 hours behind UTC.
Which countries are on HST?
HST is used in United States and United States Minor Outlying Islands.
What time is it in HST now?
The current time on HST is 03:54 on Tuesday. The clock above updates every second.
How Alarm.now explains HST
Abbreviation, offset, and IANA zones
HST is shown as a time-zone group for Hawaii-Aleutian Standard Time with offset -10:00. The page links the abbreviation to the IANA zones and countries that use it, so users and search engines can distinguish a short label from an exact time-zone rule set.
When to use a specific IANA page
Use this group page for an overview of the abbreviation and offset. Use a linked IANA time-zone page when you need exact daylight-saving rules for a calendar, app, or future-date comparison.