Time in GMT and HST
The time difference between Greenwich Mean Time (GMT) and Hawaii–Aleutian Standard Time (HST) is 10 hours. Hawaii–Aleutian Standard Time is 10 hours behind Greenwich Mean Time.
This means 9am GMT is 11pm HST (previous day) and 5pm GMT is 7am HST.
Greenwich Mean Time
- The current local time in GMT is 11:41 am (July 18, 2026)
- GMT time zone offset is UTC+00:00
Hawaii–Aleutian Standard Time
- The current local time in HST is 9:41 pm (July 18, 2026)
- HST time zone offset is UTC-10:00
How to convert Greenwich Mean Time to Hawaii–Aleutian Standard Time?
Subtract 10 hours from Greenwich Mean Time to get Hawaii–Aleutian Standard Time.
Time in GMT
00:00
Time in HST
00:00
Use the slider above to convert Greenwich Mean Time to Hawaii–Aleutian Standard 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
| GMT | HST |
|---|---|
| 12am | 2pm |
| 1am | 3pm |
| 2am | 4pm |
| 3am | 5pm |
| 4am | 6pm |
| 5am | 7pm |
| 6am | 8pm |
| 7am | 9pm |
| 8am | 10pm |
| 9am | 11pm |
| 10am | 12am |
| 11am | 1am |
| 12pm | 2am |
| 1pm | 3am |
| 2pm | 4am |
| 3pm | 5am |
| 4pm | 6am |
| 5pm | 7am |
| 6pm | 8am |
| 7pm | 9am |
| 8pm | 10am |
| 9pm | 11am |
| 10pm | 12pm |
| 11pm | 1pm |