IST to AST Arabia
Quick answers
IST is 2 hours and 30 minutes ahead of AST. IST uses GMT +5:30, and AST uses GMT +3 for this comparison.
For example, 5:30 pm IST is 3:00 pm AST. Use the converter above to adjust the date or time and create a shareable meeting link.
Best meeting overlap: 11:30am-5pm IST, which is 9am-2:30pm AST.
Compare IST time with AST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
India Standard Time is 2 hours and 30 minutes ahead of Arabia Standard Time
5:30 pm17:30 in IST is 3:00 pm15:00 in AST
IST to AST call time
Best time for a conference call or a meeting is between 11:30am-5pm in IST which corresponds to 9am-2:30pm in AST
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
3:00 pm15:00 Arabia Standard Time (AST). Offset UTC +3:00 hours
5:30 pm17:30 IST / 3:00 pm15:00 AST
| IST | AST |
|---|---|
| 12am (midnight) | 9:30 pm |
| 1am | 10:30 pm |
| 2am | 11:30 pm |
| 3am | 12:30 am |
| 4am | 1:30 am |
| 5am | 2:30 am |
| 6am | 3:30 am |
| 7am | 4:30 am |
| 8am | 5:30 am |
| 9am | 6:30 am |
| 10am | 7:30 am |
| 11am | 8:30 am |
| 12pm (noon) | 9:30 am |
| 1pm | 10:30 am |
| 2pm | 11:30 am |
| 3pm | 12:30 pm |
| 4pm | 1:30 pm |
| 5pm | 2:30 pm |
| 6pm | 3:30 pm |
| 7pm | 4:30 pm |
| 8pm | 5:30 pm |
| 9pm | 6:30 pm |
| 10pm | 7:30 pm |
| 11pm | 8:30 pm |
| 00:00 | 21:30 |
| 01:00 | 22:30 |
| 02:00 | 23:30 |
| 03:00 | 00:30 |
| 04:00 | 01:30 |
| 05:00 | 02:30 |
| 06:00 | 03:30 |
| 07:00 | 04:30 |
| 08:00 | 05:30 |
| 09:00 | 06:30 |
| 10:00 | 07:30 |
| 11:00 | 08:30 |
| 12:00 | 09:30 |
| 13:00 | 10:30 |
| 14:00 | 11:30 |
| 15:00 | 12:30 |
| 16:00 | 13:30 |
| 17:00 | 14:30 |
| 18:00 | 15:30 |
| 19:00 | 16:30 |
| 20:00 | 17:30 |
| 21:00 | 18:30 |
| 22:00 | 19:30 |
| 23:00 | 20:30 |
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bangalore, Kolkata, Chennai.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
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
