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GMT to HST converter

HST is 10 hours behind of GMT today. GMT (Greenwich Mean Time) - currently UTC+0; HST (Hawaii Standard Time) - currently UTC−10.

The 09:00-18:00 workdays in GMT and HST don't overlap at all, so one side always works early or late. Quick answers: 9 AM GMT = 11 PM HST (previous day), 12 PM GMT = 2 AM HST, 5 PM GMT = 7 AM HST.

GMT · Greenwich Mean Time

UTC+0

HST · Hawaii Standard Time

UTC−10

Convert a time

HST
--:--

Working hours side by side

columns: GMT hours
PING · 09–18 local MAYBE · 07–09, 18–21 NOT NOW · 21–07Outlined: everyone can be pinged

GMT to HST conversion table

GMTHSTVerdict in HST
12 AM · 00:002 PM · 14:00 (previous day)PING
1 AM · 01:003 PM · 15:00 (previous day)PING
2 AM · 02:004 PM · 16:00 (previous day)PING
3 AM · 03:005 PM · 17:00 (previous day)PING
4 AM · 04:006 PM · 18:00 (previous day)MAYBE
5 AM · 05:007 PM · 19:00 (previous day)MAYBE
6 AM · 06:008 PM · 20:00 (previous day)MAYBE
7 AM · 07:009 PM · 21:00 (previous day)NOT NOW
8 AM · 08:0010 PM · 22:00 (previous day)NOT NOW
9 AM · 09:0011 PM · 23:00 (previous day)NOT NOW
10 AM · 10:0012 AM · 00:00NOT NOW
11 AM · 11:001 AM · 01:00NOT NOW
12 PM · 12:002 AM · 02:00NOT NOW
1 PM · 13:003 AM · 03:00NOT NOW
2 PM · 14:004 AM · 04:00NOT NOW
3 PM · 15:005 AM · 05:00NOT NOW
4 PM · 16:006 AM · 06:00NOT NOW
5 PM · 17:007 AM · 07:00MAYBE
6 PM · 18:008 AM · 08:00MAYBE
7 PM · 19:009 AM · 09:00PING
8 PM · 20:0010 AM · 10:00PING
9 PM · 21:0011 AM · 11:00PING
10 PM · 22:0012 PM · 12:00PING
11 PM · 23:001 PM · 13:00PING

Cities on GMT

Etc/GMT

Cities on HST

Pacific/Honolulu
HonoluluEast HonoluluPearl CityWaiau-Pacific PalisadesMakakilo / Kapolei / Honokai HaleKalihi-Palama

Other conversions

All converters
HST → GMTGMT → ESTGMT → EDTGMT → PSTGMT → PDTGMT → CSTGMT → CDTGMT → MSTGMT → UTCGMT → BSTGMT → CET

Questions

What is the time difference between GMT and HST?

HST (Hawaii Standard Time) is 10 hours behind of GMT (Greenwich Mean Time) right now: UTC+0 versus UTC−10.

What is 9 AM GMT in HST?

9:00 AM GMT is 11 PM HST (previous day).

What is 5 PM GMT in HST?

5:00 PM GMT is 7 AM HST.

Does daylight saving change the GMT–HST difference?

GMT has no daylight saving; it stays UTC+0 all year. HST has no daylight saving; it stays UTC−10 all year.