AST Arabia to IST Converter
Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
AST and IST examples
These examples always use AST (UTC+3) and IST (UTC+5:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
AST is 2 hours and 30 minutes behind IST.
How the time difference changes
AST Arabia is 2 hours and 30 minutes behind IST year-round.
Working hours of 9:00 am to 5:00 pm in AST Arabia correspond to 11:30 am to 7:30 pm in IST.
Compare AST time with IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Arabia Standard Time is 2 hours and 30 minutes behind India Standard Time
3:00 pm15:00 in AST is 5:30 pm17:30 in IST
AST to IST call time
Best time for a conference call or a meeting is between 9am-2:30pm in AST which corresponds to 11:30am-5pm in IST
3:00 pm15:00 Arabia Standard Time (AST). Offset UTC +3:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
3:00 pm15:00 AST / 5:30 pm17:30 IST
| AST | IST |
|---|---|
| 12am (midnight) | 2:30 am |
| 1am | 3:30 am |
| 2am | 4:30 am |
| 3am | 5:30 am |
| 4am | 6:30 am |
| 5am | 7:30 am |
| 6am | 8:30 am |
| 7am | 9:30 am |
| 8am | 10:30 am |
| 9am | 11:30 am |
| 10am | 12:30 pm |
| 11am | 1:30 pm |
| 12pm (noon) | 2:30 pm |
| 1pm | 3:30 pm |
| 2pm | 4:30 pm |
| 3pm | 5:30 pm |
| 4pm | 6:30 pm |
| 5pm | 7:30 pm |
| 6pm | 8:30 pm |
| 7pm | 9:30 pm |
| 8pm | 10:30 pm |
| 9pm | 11:30 pm |
| 10pm | 12:30 am |
| 11pm | 1:30 am |
| 00:00 | 02:30 |
| 01:00 | 03:30 |
| 02:00 | 04:30 |
| 03:00 | 05:30 |
| 04:00 | 06:30 |
| 05:00 | 07:30 |
| 06:00 | 08:30 |
| 07:00 | 09:30 |
| 08:00 | 10:30 |
| 09:00 | 11:30 |
| 10:00 | 12:30 |
| 11:00 | 13:30 |
| 12:00 | 14:30 |
| 13:00 | 15:30 |
| 14:00 | 16:30 |
| 15:00 | 17:30 |
| 16:00 | 18:30 |
| 17:00 | 19:30 |
| 18:00 | 20:30 |
| 19:00 | 21:30 |
| 20:00 | 22:30 |
| 21:00 | 23:30 |
| 22:00 | 00:30 |
| 23:00 | 01:30 |
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 Jeddah in Saudi Arabia, with about 4.697 million people. Other major cities in this time zone include Riyadh, 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; see upcoming clock changes worldwide.

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
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, Chennai, Kolkata.
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; see upcoming clock changes worldwide.

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
