UTC to HST Time Converter

Coordinated Universal Time → Hawaii Standard Time

UTC

UTC+0

Coordinated Universal Time

offset
-10h
HST is 10h behind

HST

UTC-10

Hawaii Standard Time

Coordinated Universal Time (UTC) is 10 hours behind Hawaii Standard Time (HST). When it is noon in UTC, it is 2 AM in HST. This offset is fixed year-round.

Best Meeting Times — UTC & HST

Recommended windows where both UTC and HST participants are within working hours (8 AM–6 PM).

UTCHSTRatingDetail page
6 PM
8 AM
Best
5 PM
7 AM
Good
7 PM
9 AM
Good

Tip: When scheduling between UTC and HST, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue.

Frequently Asked Questions — UTC to HST

Coordinated Universal Time (UTC) is 10 hours behind Hawaii Standard Time (HST). UTC is UTC+0 and HST is UTC-10.