Convert IST to AEST
India Standard Time (IST) to Australian Eastern Time (AEST)
When it's 12:00 PM in Mumbai, it's 5:30 PM in Sydney
On Apr 5 – Oct 3, 2026; Apr 4 – Oct 2, 2027: 4:30 PM in Sydney.
Interactive Converter
Pick any time and date to convert between IST and AEST.
IST to AEST Conversion Table
Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.
| Mumbai (IST) | Sydney (AEST) |
|---|---|
| 12:00 AM | 5:30 AM |
| 1:00 AM | 6:30 AM |
| 2:00 AM | 7:30 AM |
| 3:00 AM | 8:30 AM |
| 4:00 AM | 9:30 AM |
| 5:00 AM | 10:30 AM |
| 6:00 AM | 11:30 AM |
| 7:00 AM | 12:30 PM |
| 8:00 AM | 1:30 PM |
| 9:00 AM | 2:30 PM |
| 10:00 AM | 3:30 PM |
| 11:00 AM | 4:30 PM |
| 12:00 PM | 5:30 PM |
| 1:00 PM | 6:30 PM |
| 2:00 PM | 7:30 PM |
| 3:00 PM | 8:30 PM |
| 4:00 PM | 9:30 PM |
| 5:00 PM | 10:30 PM |
| 6:00 PM | 11:30 PM |
| 7:00 PM | 12:30 AM +1 day |
| 8:00 PM | 1:30 AM +1 day |
| 9:00 PM | 2:30 AM +1 day |
| 10:00 PM | 3:30 AM +1 day |
| 11:00 PM | 4:30 AM +1 day |
These times apply on all dates in 2026–2027 except:
- Apr 5 – Oct 3, 2026; Apr 4 – Oct 2, 2027: Sydney times are 1 hour earlier.
Best Meeting Window
Top meeting times for teams in IST and AEST (9 AM -- 6 PM work hours, 1-hour meeting).
All members within working hours. Everyone in mid-day range.
All members within working hours. Everyone in mid-day range.
All members within working hours. Everyone in mid-day range.
These times apply on all dates in 2026–2027 except:
- Apr 5 – Oct 3, 2026; Apr 4 – Oct 2, 2027: Sydney times are 1 hour earlier.
Time Difference & DST
The IST to AEST gap is +4:30h or +5:30h, depending on daylight saving time. The table lists each period.
| Dates | Mumbai | Sydney | Difference |
|---|---|---|---|
| Jan 1 – Apr 4, 2026 | UTC+5:30 | UTC+11 | +5:30h |
| Apr 5 – Oct 3, 2026 | UTC+5:30 | UTC+10 | +4:30h |
| Oct 4, 2026 – Apr 3, 2027 | UTC+5:30 | UTC+11 | +5:30h |
| Apr 4 – Oct 2, 2027 | UTC+5:30 | UTC+10 | +4:30h |
| Oct 3 – Dec 31, 2027 | UTC+5:30 | UTC+11 | +5:30h |
Mumbai does not use daylight saving time.
Use the interactive converter for a specific date.
Major Cities
India Standard Time (IST)
- Mumbai
- Delhi
- Bangalore
Australian Eastern Time (AEST)
- Sydney
- Canberra
- Wollongong
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