HST to GMT converter
GMT is 10 hours ahead of HST today. HST (Hawaii Standard Time) - currently UTC−10; GMT (Greenwich Mean Time) - currently UTC+0.
The 09:00-18:00 workdays in HST and GMT don't overlap at all, so one side always works early or late. Quick answers: 9 AM HST = 7 PM GMT, 12 PM HST = 10 PM GMT, 5 PM HST = 3 AM GMT (next day).
Convert a time
GMT
--:--
Working hours side by side
columns: HST hours PING · 09–18 local MAYBE · 07–09, 18–21 NOT NOW · 21–07Outlined: everyone can be pinged
HST to GMT conversion table
| HST | GMT | Verdict in GMT |
|---|---|---|
| 12 AM · 00:00 | 10 AM · 10:00 | PING |
| 1 AM · 01:00 | 11 AM · 11:00 | PING |
| 2 AM · 02:00 | 12 PM · 12:00 | PING |
| 3 AM · 03:00 | 1 PM · 13:00 | PING |
| 4 AM · 04:00 | 2 PM · 14:00 | PING |
| 5 AM · 05:00 | 3 PM · 15:00 | PING |
| 6 AM · 06:00 | 4 PM · 16:00 | PING |
| 7 AM · 07:00 | 5 PM · 17:00 | PING |
| 8 AM · 08:00 | 6 PM · 18:00 | MAYBE |
| 9 AM · 09:00 | 7 PM · 19:00 | MAYBE |
| 10 AM · 10:00 | 8 PM · 20:00 | MAYBE |
| 11 AM · 11:00 | 9 PM · 21:00 | NOT NOW |
| 12 PM · 12:00 | 10 PM · 22:00 | NOT NOW |
| 1 PM · 13:00 | 11 PM · 23:00 | NOT NOW |
| 2 PM · 14:00 | 12 AM · 00:00 (next day) | NOT NOW |
| 3 PM · 15:00 | 1 AM · 01:00 (next day) | NOT NOW |
| 4 PM · 16:00 | 2 AM · 02:00 (next day) | NOT NOW |
| 5 PM · 17:00 | 3 AM · 03:00 (next day) | NOT NOW |
| 6 PM · 18:00 | 4 AM · 04:00 (next day) | NOT NOW |
| 7 PM · 19:00 | 5 AM · 05:00 (next day) | NOT NOW |
| 8 PM · 20:00 | 6 AM · 06:00 (next day) | NOT NOW |
| 9 PM · 21:00 | 7 AM · 07:00 (next day) | MAYBE |
| 10 PM · 22:00 | 8 AM · 08:00 (next day) | MAYBE |
| 11 PM · 23:00 | 9 AM · 09:00 (next day) | PING |
Cities on HST
Pacific/HonoluluCities on GMT
Etc/GMTOther conversions
All convertersQuestions
What is the time difference between HST and GMT?
GMT (Greenwich Mean Time) is 10 hours ahead of HST (Hawaii Standard Time) right now: UTC−10 versus UTC+0.
What is 9 AM HST in GMT?
9:00 AM HST is 7 PM GMT.
What is 5 PM HST in GMT?
5:00 PM HST is 3 AM GMT (next day).
Does daylight saving change the HST–GMT difference?
HST has no daylight saving; it stays UTC−10 all year. GMT has no daylight saving; it stays UTC+0 all year.