What does HST stand for?

HST stands for Hawaii Standard Time. It is UTC-10 and is used in: Hawaii, United States.

What time is it in HST right now?

The live clock above shows the current time in HST (UTC-10). It updates every second using your browser's built-in time API.

Which countries or regions use HST?

HST is used in the following regions: Hawaii, United States. Note that some regions may use a different abbreviation for the same offset during Daylight Saving Time.

Is HST the same as UTC-10?

Yes. HST is the standard abbreviation for the UTC-10 offset. However, the same UTC offset can have multiple abbreviations depending on the region and whether Daylight Saving Time is in effect.

How do I convert HST time to my local time?

Use the Compare tool on HOUR — add HST and your city side by side to see the exact difference instantly. You can also use the Time Simulator on the home page to drag through any hour and see both times simultaneously.

Does HST observe Daylight Saving Time?

Standard time zone abbreviations like HST refer to a fixed offset (UTC-10). If a region using HST observes DST, it switches to a different abbreviation during summer — for example, EST switches to EDT. The clock on each region's page always reflects the correct current offset.

What is the difference between HST and similar time zones?

Time zone abbreviations are not always globally unique — the same letters can refer to different offsets in different regions. HST on this page specifically refers to Hawaii Standard Time (UTC-10). Always verify the UTC offset when scheduling across regions to avoid confusion.

Can I schedule a meeting across HST and other time zones?

Yes. Use the Compare page on HOUR — add HST and any other cities or time zones. The side-by-side view shows all local times simultaneously, making it easy to find a meeting slot that works for everyone.

How accurate is the HST clock on this page?

The clock uses your browser's built-in Intl.DateTimeFormat API, which reads directly from your device's system clock and applies the correct IANA timezone offset. There is no server delay — the time is always accurate to the second.

HSTUTC-10

Hawaii Standard Time

Hawaii, United States

vs. your location

-19h from your location

HST|Standard Time Zone

Daytime

HST Time

--:--:--

Abbreviation

HST

UTC Offset

UTC-10

Used in

Hawaii, United States

Related Time Zones

View all 44 →

AKST

UTC-9

→

Browse All 44 Time Zone Abbreviations →

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HST Time — Hawaii Standard Time

HST stands for Hawaii Standard Time and is currently UTC-10. This page shows the live current time for the HST time zone, used across Hawaii, United States.

How to Use This Page

1
Check the live HST clock
The clock updates every second and always shows the current time in the HST (Hawaii Standard Time, UTC-10) time zone.
2
Understand the UTC offset
HST is UTC-10 — meaning it is that many hours ahead or behind Coordinated Universal Time (UTC).
3
See which regions use HST
The regions listed on this page all share the HST time zone. Tap any region to open its dedicated clock page.
4
Compare with your location
Open the Compare page and add HST to see your local time and HST time side by side.