IST to AST Arabia Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
5:30 pm17:30 IST (UTC+5:30), Oct 25, 2026 = 3:00 pm15:00 AST (UTC+3), Oct 25, 2026
IST is 2 hours and 30 minutes ahead of AST.
IST and AST examples
These examples always use IST (UTC+5:30) and AST (UTC+3). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
IST is 2 hours and 30 minutes ahead of AST.
How the time difference changes
IST is 2 hours and 30 minutes ahead of AST Arabia year-round.
Working hours of 9:00 am to 6:00 pm in IST correspond to 6:30 am to 3:30 pm in AST Arabia.Working hours of 09:00 to 18:00 in IST correspond to 06:30 to 15:30 in AST Arabia.
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-6pm11:30-18:00 in IST which corresponds to 9am-3:30pm09:00-15:30 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
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| IST | AST |
|---|---|
| 9:30pm previous day | |
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| 21:30 previous day | |
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India Standard Time
Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
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, Bengaluru, Hyderabad, Ahmedabad.
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.
Current time in India: India time now
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 of Greenwich Mean Time (GMT).
Countries using this time zone: Bahrain, Iraq, Kuwait, Qatar, Saudi Arabia, Yemen
Principal Cities: The largest city in the AST time zone is Baghdad in Iraq, with about 7.216 million people. Other major cities in this time zone include Jeddah, Riyadh, Sanaa, Mosul.
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