Time in HDT and GST
The time difference between Hawaii–Aleutian Daylight Time (HDT) and Gulf Standard Time (GST) is 13 hours. Gulf Standard Time is 13 hours ahead of Hawaii–Aleutian Daylight Time.
This means 9am HDT is 10pm GST and 5pm HDT is 6am GST (next day).
Hawaii–Aleutian Daylight Time
- The current local time in HDT is 5:29 pm (September 2, 2026)
- HDT time zone offset is UTC-09:00
Gulf Standard Time
- The current local time in GST is 12:29 pm (September 2, 2026)
- GST time zone offset is UTC+04:00
How to convert Hawaii–Aleutian Daylight Time to Gulf Standard Time?
Add 13 hours to Hawaii–Aleutian Daylight Time to get Gulf Standard Time.
Time in HDT
00:00
Time in GST
00:00
Use the slider above to convert Hawaii–Aleutian Daylight Time to Gulf 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
| HDT | GST |
|---|---|
| 12am | 1pm |
| 1am | 2pm |
| 2am | 3pm |
| 3am | 4pm |
| 4am | 5pm |
| 5am | 6pm |
| 6am | 7pm |
| 7am | 8pm |
| 8am | 9pm |
| 9am | 10pm |
| 10am | 11pm |
| 11am | 12am |
| 12pm | 1am |
| 1pm | 2am |
| 2pm | 3am |
| 3pm | 4am |
| 4pm | 5am |
| 5pm | 6am |
| 6pm | 7am |
| 7pm | 8am |
| 8pm | 9am |
| 9pm | 10am |
| 10pm | 11am |
| 11pm | 12pm |