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DateAlmanac

What is UTC in HST?

Hawaii Standard Time is 10 hours behind

Coordinated Universal Time is on UTC+0:00 and Hawaii Standard Time is on UTC−10:00 right now. That gap holds all year, because neither zone observes daylight saving.

Convert a time

HST — Hawaii Standard Time

10:00 pm

HST, Fri, the previous day

Time in the prime meridian
8:29:08 AM
Time in Honolulu
10:29:08 PM
Difference
−10 h
Next clock change
Neither zone

Daylight saving

Coordinated Universal Time

No clock changes

Coordinated Universal Time stays on UTC all year, so its offset from UTC never moves.

Hawaii Standard Time

No clock changes

Hawaii Standard Time stays on HST all year, so its offset from UTC never moves.

UTC to HST conversion table

Every hour of Saturday, November 7, 2026, converted from Coordinated Universal Time to Hawaii Standard Time. 10 of the 24 hours fall on a different calendar day in Honolulu, which is marked.

12:00 am UTC
2:00 pm HST−1 day
1:00 am UTC
3:00 pm HST−1 day
2:00 am UTC
4:00 pm HST−1 day
3:00 am UTC
5:00 pm HST−1 day
4:00 am UTC
6:00 pm HST−1 day
5:00 am UTC
7:00 pm HST−1 day
6:00 am UTC
8:00 pm HST−1 day
7:00 am UTC
9:00 pm HST−1 day
8:00 am UTC
10:00 pm HST−1 day
9:00 am UTC
11:00 pm HST−1 day
10:00 am UTC
12:00 am HST
11:00 am UTC
1:00 am HST
12:00 pm UTC
2:00 am HST
1:00 pm UTC
3:00 am HST
2:00 pm UTC
4:00 am HST
3:00 pm UTC
5:00 am HST
4:00 pm UTC
6:00 am HST
5:00 pm UTC
7:00 am HST
6:00 pm UTC
8:00 am HST
7:00 pm UTC
9:00 am HST
8:00 pm UTC
10:00 am HST
9:00 pm UTC
11:00 am HST
10:00 pm UTC
12:00 pm HST
11:00 pm UTC
1:00 pm HST

Scheduling between the two

There is no overlap between a nine-to-six working day in the prime meridian and one in Honolulu — the gap is too wide. A call has to sit early or late for one side. Early morning in the prime meridian is the usual compromise, since that is late afternoon or evening in Honolulu.

Coordinated Universal Time (UTC) is used in aviation, computing, and science worldwide. UTC never changes for daylight saving.

Hawaii Standard Time (HST) is used in all of Hawaii, which does not observe daylight saving

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