GST to GMT Converter
GMT is 4 hours behind GST. 9:00 AM GST = 5:00 AM GMT.
GMT is 4 hours behind GST. To convert GST to GMT, subtract 4 hours from the GST time: 9:00 AM GST = 5:00 AM GMT.
GST (Gulf Time) is used in United Arab Emirates and Oman. GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
GST to GMT time conversion table
GST to GMT on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GST | GMT | Day |
|---|---|---|
| 12:00 AM GST | 8:00 PM GMT | previous day |
| 1:00 AM GST | 9:00 PM GMT | previous day |
| 2:00 AM GST | 10:00 PM GMT | previous day |
| 3:00 AM GST | 11:00 PM GMT | previous day |
| 4:00 AM GST | 12:00 AM GMT | night |
| 5:00 AM GST | 1:00 AM GMT | night |
| 6:00 AM GST | 2:00 AM GMT | night |
| 7:00 AM GST | 3:00 AM GMT | night |
| 8:00 AM GST | 4:00 AM GMT | night |
| 9:00 AM GST | 5:00 AM GMT | night |
| 10:00 AM GST | 6:00 AM GMT | — |
| 11:00 AM GST | 7:00 AM GMT | — |
| 12:00 PM GST | 8:00 AM GMT | — |
| 1:00 PM GST | 9:00 AM GMT | work hours |
| 2:00 PM GST | 10:00 AM GMT | work hours |
| 3:00 PM GST | 11:00 AM GMT | work hours |
| 4:00 PM GST | 12:00 PM GMT | work hours |
| 5:00 PM GST | 1:00 PM GMT | — |
| 6:00 PM GST | 2:00 PM GMT | — |
| 7:00 PM GST | 3:00 PM GMT | — |
| 8:00 PM GST | 4:00 PM GMT | — |
| 9:00 PM GST | 5:00 PM GMT | — |
| 10:00 PM GST | 6:00 PM GMT | — |
| 11:00 PM GST | 7:00 PM GMT | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert GST to GMT
Subtract 4 hours from the GST time to get GMT.
Example: 9:00 AM GST = 5:00 AM GMT.
Across midnight: 1:00 AM GST = 9:00 PM GMT (previous day). The date changes, so always check the day as well as the hour.
Time difference between GST and GMT
The time difference between GST and GMT is 4 hours all year – GMT is behind GST.
GST and GMT during daylight saving time
- GST does not observe daylight saving time; it stays on UTC+4 all year.
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
Best time for a meeting between GST and GMT
GST and GMT share 4 hours of the 9 AM–5 PM working day. Any time between 1:00 PM and 5:00 PM GST lands between 9:00 AM and 1:00 PM GMT, inside working hours for both.
GST to GMT FAQ
What is the time difference between GST and GMT?
GMT is 4 hours behind GST all year. 9:00 AM GST = 5:00 AM GMT.
What is 9 AM GST in GMT?
9:00 AM GST is 5:00 AM GMT.
What is 12 PM (noon) GST in GMT?
12:00 PM GST is 8:00 AM GMT.
Is GMT ahead of or behind GST?
GMT is 4 hours behind GST, so it is earlier in GMT 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 GMT change for daylight saving time?
No. GMT 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 GMT?
GST and GMT share 4 hours of the 9 AM–5 PM working day. Any time between 1:00 PM and 5:00 PM GST lands between 9:00 AM and 1:00 PM GMT, inside working hours for both.
Related conversions
Convert GMT to GST
Convert GST to other time zones
Convert other time zones to GMT
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.