AST Arabia to GST
Quick answers
AST is 1 hour behind GST. AST uses GMT +3, and GST uses GMT +4 for this comparison.
For example, 3:00 pm AST is 4:00 pm GST. Use the converter above to adjust the date or time and create a shareable meeting link.
Best meeting overlap: 9am-4pm AST, which is 10am-5pm GST.
Compare AST time with GST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Arabia Standard Time is 1 hour behind Gulf Standard Time
3:00 pm15:00 in AST is 4:00 pm16:00 in GST
AST to GST call time
Best time for a conference call or a meeting is between 9am-4pm in AST which corresponds to 10am-5pm in GST
3:00 pm15:00 Arabia Standard Time (AST). Offset UTC +3:00 hours
4:00 pm16:00 Gulf Standard Time (GST). Offset UTC +4:00 hours
3:00 pm15:00 AST / 4:00 pm16:00 GST
| AST | GST |
|---|---|
| 12am (midnight) | 1am |
| 1am | 2am |
| 2am | 3am |
| 3am | 4am |
| 4am | 5am |
| 5am | 6am |
| 6am | 7am |
| 7am | 8am |
| 8am | 9am |
| 9am | 10am |
| 10am | 11am |
| 11am | 12pm (noon) |
| 12pm (noon) | 1pm |
| 1pm | 2pm |
| 2pm | 3pm |
| 3pm | 4pm |
| 4pm | 5pm |
| 5pm | 6pm |
| 6pm | 7pm |
| 7pm | 8pm |
| 8pm | 9pm |
| 9pm | 10pm |
| 10pm | 11pm |
| 11pm | 12am (midnight) |
| 00:00 | 01:00 |
| 01:00 | 02:00 |
| 02:00 | 03:00 |
| 03:00 | 04:00 |
| 04:00 | 05:00 |
| 05:00 | 06:00 |
| 06:00 | 07:00 |
| 07:00 | 08:00 |
| 08:00 | 09:00 |
| 09:00 | 10:00 |
| 10:00 | 11:00 |
| 11:00 | 12:00 |
| 12:00 | 13:00 |
| 13:00 | 14:00 |
| 14:00 | 15:00 |
| 15:00 | 16:00 |
| 16:00 | 17:00 |
| 17:00 | 18:00 |
| 18:00 | 19:00 |
| 19:00 | 20:00 |
| 20:00 | 21:00 |
| 21:00 | 22:00 |
| 22:00 | 23:00 |
| 23:00 | 00:00 |
Arabia Standard Time
Offset: AST is 3 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: Saudi Arabia
Principal Cities: The largest city in the AST time zone is Riyadh in Saudi Arabia, with about 4.206 million people. Other major cities in this time zone include Jeddah, Mecca, Medina, Sultanah.
Daylight Saving: Clocks in Arabia Standard Time (AST) do not change for daylight saving time, so AST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

AST representations, usage and related time zones
- +03 - basic short
- +0300 - basic
- +03:00 - extended
- +0300 - sign character (+) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the east of the zero meridian.
- Charlie - Military abbreviation for AST
- C - short form of 'Charlie'
- Atlantic Standard Time - UTC -4
- Arabia Standard Time - UTC +3
- EEST - Eastern European Summer Time
- MSK - Moscow Standard Time
- AST - Arabia Standard Time
- C - Charlie Time Zone
- EAT - Eastern Africa Time
- FET - Further Eastern European Time
- IDT - Israel Daylight Time
- TRT - Turkey Time
Gulf Standard Time
Offset: GST is 4 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: United Arab Emirates
Principal Cities: The largest city in the GST time zone is Dubai in United Arab Emirates, with about 1.137 million people. Other major cities in this time zone include Abu Dhabi, Sharjah, Al Ain, Ajman.
Daylight Saving: Clocks in Gulf Standard Time (GST) do not change for daylight saving time, so GST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

GST representations, usage and related time zones
- +04 - basic short
- +0400 - basic
- +04:00 - extended
- +0400 - sign character (+) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the east of the zero meridian.
- Delta - Military abbreviation for GST
- D - short form of 'Delta'
- KUYT - Kuybyshev Time
- MSD - Moscow Daylight Time
- SAMT - Samara Time
- AMT - Armenia Time
- AZT - Azerbaijan Time
- D - Delta Time Zone
- GET - Georgia Standard Time
- GST - Gulf Standard Time
- MUT - Mauritius Time
- RET - Reunion Time
- SCT - Seychelles Time
