Time in HST and GMT
The time difference between Hawaii–Aleutian Standard Time (HST) and Greenwich Mean Time (GMT) is 10 hours. Greenwich Mean Time is 10 hours ahead of Hawaii–Aleutian Standard Time.
This means 9am HST is 7pm GMT and 5pm HST is 3am GMT (next day).
Hawaii–Aleutian Standard Time
- The current local time in HST is 7:10 am (July 11, 2026)
- HST time zone offset is UTC-10:00
Greenwich Mean Time
- The current local time in GMT is 9:10 pm (July 10, 2026)
- GMT time zone offset is UTC+00:00
How to convert Hawaii–Aleutian Standard Time to Greenwich Mean Time?
Add 10 hours to Hawaii–Aleutian Standard Time to get Greenwich Mean Time.
Time in HST
00:00
Time in GMT
00:00
Use the slider above to convert Hawaii–Aleutian Standard Time to Greenwich Mean Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| HST | GMT |
|---|---|
| 12am | 10am |
| 1am | 11am |
| 2am | 12pm |
| 3am | 1pm |
| 4am | 2pm |
| 5am | 3pm |
| 6am | 4pm |
| 7am | 5pm |
| 8am | 6pm |
| 9am | 7pm |
| 10am | 8pm |
| 11am | 9pm |
| 12pm | 10pm |
| 1pm | 11pm |
| 2pm | 12am |
| 3pm | 1am |
| 4pm | 2am |
| 5pm | 3am |
| 6pm | 4am |
| 7pm | 5am |
| 8pm | 6am |
| 9pm | 7am |
| 10pm | 8am |
| 11pm | 9am |