GMT to GST Time Converter
Convert Greenwich Mean Time to Gulf Standard Time instantly.
Scroll the timeline to check any hour of the day.
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How the GMT to GST time difference works
GST is 4 hours ahead of GMT. Greenwich Mean Time (GMT) is the fixed UTC+0 reference time, used by the United Kingdom and Ireland in winter.
Gulf Standard Time (GST) is the time zone of the United Arab Emirates and Oman.
For example, 9:00 AM GMT is 1:00 PM GST.
Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
GMT to GST conversion chart
| Greenwich Mean Time (GMT) |
Gulf Standard Time (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 +1 day |
| 9:00 PM |
1:00 AM +1 day |
| 10:00 PM |
2:00 AM +1 day |
| 11:00 PM |
3:00 AM +1 day |
Best time to meet
A standard 9 to 5 workday overlaps from 9:00 AM to 1:00 PM GMT (1:00 PM to 5:00 PM GST). Schedule inside that window to catch both coasts during business hours.
Cities in each time zone
Greenwich Mean Time (GMT)
LondonDublinLisbonEdinburghManchester
Gulf Standard Time (GST)
DubaiAbu DhabiSharjahMuscatAl Ain
GMT to GST questions
Is GST ahead of or behind GMT?
GST is 4 hours ahead of GMT. So 9:00 AM GMT is 1:00 PM GST, and 5:00 PM GMT is 9:00 PM GST.
What time is it in GST when it is 12:00 PM GMT?
When it is 12:00 PM (noon) GMT in Greenwich Mean Time, it is 4:00 PM GST in Gulf Standard Time.
How many hours difference is there between GMT and GST?
There is a 4 hours difference. Gulf Standard Time (GST) runs 4 hours ahead of Greenwich Mean Time (GMT).
Do GMT and GST observe daylight saving time?
Neither Greenwich Mean Time nor Gulf Standard Time shifts its clocks for daylight saving time, so the 4 hours difference between them is the same all year. The United Kingdom and Ireland use GMT only in winter; from late March to late October they switch to British Summer Time (BST), one hour ahead of GMT.
What is the best time to schedule a meeting between GMT and GST?
A standard 9-to-5 workday overlaps from 9:00 AM to 1:00 PM GMT (1:00 PM to 5:00 PM GST). Scheduling inside that window keeps the call during business hours in both Greenwich Mean Time and Gulf Standard Time.
Which cities use GMT and GST?
Greenwich Mean Time (GMT) covers cities such as London, Dublin, Lisbon, Edinburgh, Manchester. Gulf Standard Time (GST) covers cities such as Dubai, Abu Dhabi, Sharjah, Muscat, Al Ain.
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