GMT to GST Converter
Convert time between Greenwich Mean Time (GMT) and Gulf Standard Time (GST).
Convert a specific time
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEDT, UTC-4
- Central Time – ChicagoCDT, UTC-5
- Mountain Time – DenverMDT, UTC-6
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPDT, UTC-7
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonBST, UTC+1
- Central Europe – Paris, BerlinCEST, UTC+2
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEST, UTC+10
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEDT, UTC-4
- Central Time – ChicagoCDT, UTC-5
- Mountain Time – DenverMDT, UTC-6
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPDT, UTC-7
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonBST, UTC+1
- Central Europe – Paris, BerlinCEST, UTC+2
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEST, UTC+10
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
Time Difference
Greenwich Mean Time is 4 hours behind Gulf Standard Time right now.
- All year: Greenwich Mean Time is 4 hours behind Gulf Standard Time (UTC → GST).
Best time to call
Convenient overlapping hours on Saturday, September 19, 2026.
| GMT (Greenwich Mean Time) | GST (Gulf Standard Time) |
|---|---|
| 9:00 AM | 1:00 PM |
| 10:00 AM | 2:00 PM |
| 11:00 AM | 3:00 PM |
| 12:00 PM | 4:00 PM |
These hours fall within 9 AM–5 PM in both places.
Convert another time zone Plan a meeting across GMT and GSTGMT to GST conversion table
For Saturday, September 19, 2026 in Greenwich Mean Time.
| UTC | 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(next day) |
| 9:00 PM | 1:00 AM(next day) |
| 10:00 PM | 2:00 AM(next day) |
| 11:00 PM | 3:00 AM(next day) |
About these time zones
Greenwich Mean Time (GMT)
Greenwich Mean Time (GMT) is the time at UTC+0. GMT and UTC show the same clock time; UTC is the scientific standard, while GMT is a time zone name. The United Kingdom and Ireland use GMT only in winter: in summer the UK switches to British Summer Time (BST, UTC+1) and Ireland to Irish Standard Time (IST, UTC+1).
Gulf Standard Time (GST)
Gulf Standard Time (GST) is UTC+4 all year, used in the United Arab Emirates and Oman. Neither country observes daylight saving time. Saudi Arabia, Qatar, Bahrain and Kuwait are one hour behind on Arabia Standard Time (UTC+3).
GMT to GST FAQs
What time is it in GST when it is 9 AM GMT?
On Saturday, September 19, 2026, 9:00 AM UTC is 1:00 PM GST in Gulf Standard Time.
How many hours ahead is GMT from GST?
Greenwich Mean Time is 4 hours behind Gulf Standard Time (UTC vs GST).
What is the best time for a call between GMT and GST?
On Saturday, September 19, 2026, good options are 9:00 AM UTC (1:00 PM GST), 10:00 AM UTC (2:00 PM GST), 11:00 AM UTC (3:00 PM GST), 12:00 PM UTC (4:00 PM GST). These fall within normal 9 AM–5 PM working hours in both places.
Does GMT change for daylight saving time?
No. GMT stays at UTC+0 all year.
Does GST change for daylight saving time?
No. GST stays at UTC+4 all year.