GMT to GST Converter
GST is 4 hours ahead of GMT all year.
GST to GMT insteadTime difference between GMT and GST
GST is 4 hours ahead of GMT all year.
Neither side uses daylight saving time, so the difference never changes.
GMT to GST conversion table
| GMT | GSTAll year |
|---|---|
| 12 AM | 4 AM |
| 1 AM | 5 AM |
| 2 AM | 6 AM |
| 3 AM | 7 AM |
| 4 AM | 8 AM |
| 5 AM | 9 AM |
| 6 AM | 10 AM |
| 7 AM | 11 AM |
| 8 AM | 12 PM |
| 9 AM | 1 PM |
| 10 AM | 2 PM |
| 11 AM | 3 PM |
| 12 PM | 4 PM |
| 1 PM | 5 PM |
| 2 PM | 6 PM |
| 3 PM | 7 PM |
| 4 PM | 8 PM |
| 5 PM | 9 PM |
| 6 PM | 10 PM |
| 7 PM | 11 PM |
| 8 PM | 12 AM+1 day |
| 9 PM | 1 AM+1 day |
| 10 PM | 2 AM+1 day |
| 11 PM | 3 AM+1 day |
Best time to meet
Working hours (9 AM – 5 PM) overlap for 4 hours: 9 AM – 1 PM GMT (1 PM – 5 PM GST). That window is the best time for calls and meetings.
Frequently asked questions
What time is it in GST when it's 9 AM in GMT?
1 PM. GST is 4 hours ahead of GMT.
How many hours is GST ahead of GMT?
4 hours, all year round. Neither side uses daylight saving time, so the difference never changes.
Does GMT use daylight saving time?
No. Greenwich Mean Time stays at UTC+0 all year.
Does GST use daylight saving time?
No. Gulf Standard Time stays at UTC+4 all year.
When is the best time to schedule a meeting between GMT and GST?
Working hours (9 AM – 5 PM) overlap for 4 hours: 9 AM – 1 PM GMT (1 PM – 5 PM GST). That window is the best time for calls and meetings.
Which GST does this page use?
GST here means Gulf Standard Time (UTC+4), not South Georgia Time.