IST to AEST Converter
AEST is 5 hours 30 minutes ahead of IST for most of the year. The gap changes for a few weeks a year because the two places switch to daylight saving time on different dates.
AEST to IST insteadTime difference between IST and AEST
AEST is 5 hours 30 minutes ahead of IST for most of the year.
- 2026: AEST is 4 hours 30 minutes ahead of IST from Apr 5 – Oct 3, 2026.
- 2027: AEST is 4 hours 30 minutes ahead of IST from Apr 4 – Oct 2, 2027.
IST to AEST conversion table
| IST | AESTMost of the year | AESTApr 5 – Oct 3, 2026 |
|---|---|---|
| 12 AM | 5:30 AM | 4:30 AM |
| 1 AM | 6:30 AM | 5:30 AM |
| 2 AM | 7:30 AM | 6:30 AM |
| 3 AM | 8:30 AM | 7:30 AM |
| 4 AM | 9:30 AM | 8:30 AM |
| 5 AM | 10:30 AM | 9:30 AM |
| 6 AM | 11:30 AM | 10:30 AM |
| 7 AM | 12:30 PM | 11:30 AM |
| 8 AM | 1:30 PM | 12:30 PM |
| 9 AM | 2:30 PM | 1:30 PM |
| 10 AM | 3:30 PM | 2:30 PM |
| 11 AM | 4:30 PM | 3:30 PM |
| 12 PM | 5:30 PM | 4:30 PM |
| 1 PM | 6:30 PM | 5:30 PM |
| 2 PM | 7:30 PM | 6:30 PM |
| 3 PM | 8:30 PM | 7:30 PM |
| 4 PM | 9:30 PM | 8:30 PM |
| 5 PM | 10:30 PM | 9:30 PM |
| 6 PM | 11:30 PM | 10:30 PM |
| 7 PM | 12:30 AM+1 day | 11:30 PM |
| 8 PM | 1:30 AM+1 day | 12:30 AM+1 day |
| 9 PM | 2:30 AM+1 day | 1:30 AM+1 day |
| 10 PM | 3:30 AM+1 day | 2:30 AM+1 day |
| 11 PM | 4:30 AM+1 day | 3:30 AM+1 day |
Best time to meet
Working hours (9 AM – 5 PM) overlap for 2 hours 30 minutes: 9 AM – 11:30 AM IST (2:30 PM – 5 PM AEST). That window is the best time for calls and meetings.
Frequently asked questions
What time is it in AEST when it's 9 AM in IST?
2:30 PM for most of the year. AEST is 5 hours 30 minutes ahead of IST.
How many hours is AEST ahead of IST?
Usually 5 hours 30 minutes. The gap changes for a few weeks a year because daylight saving time starts and ends on different dates: 2026: AEST is 4 hours 30 minutes ahead of IST from Apr 5 – Oct 3, 2026. 2027: AEST is 4 hours 30 minutes ahead of IST from Apr 4 – Oct 2, 2027.
Does IST use daylight saving time?
No. India Standard Time stays at UTC+5:30 all year.
Does AEST use daylight saving time?
Yes. Australian Eastern Time is UTC+11 (UTC+11) in January and UTC+10 (UTC+10) in July. Apr 4, 2026: clocks go back to UTC+10; Oct 3, 2026: clocks go forward to UTC+11.
When is the best time to schedule a meeting between IST and AEST?
Working hours (9 AM – 5 PM) overlap for 2 hours 30 minutes: 9 AM – 11:30 AM IST (2:30 PM – 5 PM AEST). That window is the best time for calls and meetings.
Which IST does this page use?
IST here means India Standard Time (UTC+5:30), not Irish or Israel Standard Time.