GMT to GST Converter
GST is 4 hours ahead of GMT
GMT to GST Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in GST
| GMT | GST |
|---|---|
| 12:00 AM | 4:00 AM |
| 1:00 AM | 5:00 AM |
| 2:00 AM | 6:00 AM |
| 3:00 AM | 7:00 AM |
| 4:00 AM | 8:00 AM |
| 5:00 AM | 9:00 AM |
| 6:00 AM | 10:00 AM |
| 7:00 AM | 11:00 AM |
| 8:00 AM | 12:00 PM |
| 9:00 AM | 1:00 PM |
| 10:00 AM | 2:00 PM |
| 11:00 AM | 3:00 PM |
| 12:00 PM | 4:00 PM |
| 1:00 PM | 5:00 PM |
| 2:00 PM | 6:00 PM |
| 3:00 PM | 7:00 PM |
| 4:00 PM | 8:00 PM |
| 5:00 PM | 9:00 PM |
| 6:00 PM | 10:00 PM |
| 7:00 PM | 11:00 PM |
| 8:00 PM | 12:00 AM +1d |
| 9:00 PM | 1:00 AM +1d |
| 10:00 PM | 2:00 AM +1d |
| 11:00 PM | 3:00 AM +1d |
Converting Greenwich Mean Time to Gulf Standard Time
Greenwich Mean Time (GMT) and Gulf Standard Time (GST) are separated by a 4 hours time difference. GST is 4 hours ahead of GMT. GMT is UTC+0, used in United Kingdom, Ireland, Portugal, while GST is UTC+4, used in United Arab Emirates, Oman.
When converting from GMT to GST, the key reference points to remember are: 9:00 AM GMT equals 1:00 PM GST, 12:00 PM noon GMT equals 4:00 PM GST, and 5:00 PM GMT equals 9:00 PM GST. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across GMT and GST
For professionals scheduling meetings between GMT and GST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 4 hours difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
GMT observes Daylight Saving Time, switching to BST (UTC+1) during summer months. GST does not observe DST, staying at UTC+4 year-round. During DST transitions, the time difference between these zones may temporarily change by 1 hour. Always verify the current offset during spring and fall transition periods.