IST to AEST Converter – Convert Indian Time to Australian Eastern Time

Free IST to AEST Time Zone Converter - Convert IST to AEST Instantly

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Select your time and date, then see the conversion instantly
When it's --:-- in ---, it's:
--:----- (---)
--- is --- hrs behind/ahead of ---
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Quick Reference: AEST is 4 hours 30 minutes ahead of IST. India does not observe daylight saving time, so this difference remains constant.

Common IST to AEST Conversions:
00:00 IST = 04:30 AEST | 06:00 IST = 10:30 AEST | 09:00 IST = 13:30 AEST | 12:00 IST = 16:30 AEST | 15:00 IST = 19:30 AEST | 18:00 IST = 22:30 AEST

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Tuesday, July 8, 2025
12:00 PM
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Common Questions About IST to AEST Conversion

What is the time difference between IST and AEST?

AEST is 4.5 hours ahead of IST.

00:00 IST 04:00 AEST
09:00 IST 13:00 AEST
12:00 IST 16:00 AEST
20:00 IST 00:00 AEST +1

Is AEST always 4.5 hours ahead?

Yes, both timezones maintain constant offsets year-round.

Neither IST nor AEST observe Daylight Saving Time, so the difference remains 4.5 hours.

What is the best time for meetings between IST and AEST?

Optimal window: 09:30-12:30 IST = 13:30-16:30 AEST

10:00 IST
= 14:30 AEST
12:00 IST
= 16:30 AEST

Works for India business hours and Australia East business hours.

IST to AEST Quick Conversion Chart

00:00 IST 04:30 AEST
09:00 IST 13:30 AEST
12:00 IST 16:30 AEST
14:00 IST 18:30 AEST
20:00 IST 00:30 +1 AEST
22:00 IST 02:30 +1 AEST

Frequently Asked Questions

To convert IST to AEST, use our free time zone converter above. Simply select your time and date to see the instant conversion. Our tool automatically accounts for Daylight Saving Time changes in both time zones.

The time difference between IST and AEST varies depending on whether Daylight Saving Time is in effect. Use our converter above for the most accurate, real-time time difference.

The best meeting time between India (IST) and Australia Eastern (AEST) depends on business hours in both locations. Use our advanced meeting planner below to find overlapping work hours that suit both time zones.

India does not observe Daylight Saving Time. IST remains constant year-round, which simplifies conversions.

Major cities in the IST timezone include Mumbai and other cities in India. This timezone does not observe Daylight Saving Time.

Major cities in the AEST timezone include Sydney and other cities in Australia Eastern. These cities switch between AEST and AEDT for Daylight Saving Time.

For calls between India (IST) and Australia Eastern (AEST), use our converter to find mutually convenient times. Always specify both local times in meeting invites to avoid confusion, and account for Daylight Saving Time changes.

Need more help? Check our complete FAQ section.

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