GST to HST Converter
HST is 14 hours behind GST. 9:00 AM GST = 7:00 PM HST (previous day).
HST is 14 hours behind GST. To convert GST to HST, subtract 14 hours from the GST time: 9:00 AM GST = 7:00 PM HST (previous day).
GST (Gulf Time) is used in United Arab Emirates and Oman. HST (Hawaii-Aleutian Time) is used in Hawaii (all year, no daylight saving time).
GST to HST time conversion table
GST to HST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GST | HST | Day |
|---|---|---|
| 12:00 AM GST | 10:00 AM HST | previous day |
| 1:00 AM GST | 11:00 AM HST | previous day |
| 2:00 AM GST | 12:00 PM HST | previous day |
| 3:00 AM GST | 1:00 PM HST | previous day |
| 4:00 AM GST | 2:00 PM HST | previous day |
| 5:00 AM GST | 3:00 PM HST | previous day |
| 6:00 AM GST | 4:00 PM HST | previous day |
| 7:00 AM GST | 5:00 PM HST | previous day |
| 8:00 AM GST | 6:00 PM HST | previous day |
| 9:00 AM GST | 7:00 PM HST | previous day |
| 10:00 AM GST | 8:00 PM HST | previous day |
| 11:00 AM GST | 9:00 PM HST | previous day |
| 12:00 PM GST | 10:00 PM HST | previous day |
| 1:00 PM GST | 11:00 PM HST | previous day |
| 2:00 PM GST | 12:00 AM HST | night |
| 3:00 PM GST | 1:00 AM HST | night |
| 4:00 PM GST | 2:00 AM HST | night |
| 5:00 PM GST | 3:00 AM HST | night |
| 6:00 PM GST | 4:00 AM HST | night |
| 7:00 PM GST | 5:00 AM HST | night |
| 8:00 PM GST | 6:00 AM HST | — |
| 9:00 PM GST | 7:00 AM HST | — |
| 10:00 PM GST | 8:00 AM HST | — |
| 11:00 PM GST | 9:00 AM HST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert GST to HST
Subtract 14 hours from the GST time to get HST.
Example: 9:00 AM GST = 7:00 PM HST (previous day).
Across midnight: 1:00 AM GST = 11:00 AM HST (previous day). The date changes, so always check the day as well as the hour.
Time difference between GST and HST
The time difference between GST and HST is 14 hours all year – HST is behind GST.
GST and HST during daylight saving time
- GST does not observe daylight saving time; it stays on UTC+4 all year.
- HST does not observe daylight saving time; it stays on UTC−10 all year.
Best time for a meeting between GST and HST
GST and HST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GST, which is 5:00 PM HST.
GST to HST FAQ
What is the time difference between GST and HST?
HST is 14 hours behind GST all year. 9:00 AM GST = 7:00 PM HST (previous day).
What is 9 AM GST in HST?
9:00 AM GST is 7:00 PM HST (previous day).
What is 12 PM (noon) GST in HST?
12:00 PM GST is 10:00 PM HST (previous day).
Is HST ahead of or behind GST?
HST is 14 hours behind GST, so it is earlier in HST than in GST.
Does GST change for daylight saving time?
No. GST stays on the same offset all year, so conversions never shift for daylight saving time.
Does HST change for daylight saving time?
No. HST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between GST and HST?
GST and HST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GST, which is 5:00 PM HST.
Related conversions
Convert HST to GST
Convert GST to other time zones
Convert other time zones to HST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.