IST to AEST
On Oct 23, 2026, Australian Eastern Time is 5 hours 30 minutes ahead of India Standard Time: 9:00 AM IST is 2:30 PM AEDT. The gap changes during the year because of daylight saving time; the dates are below.
AEST vs IST over the next 12 months
| Period | AEST is | Example |
|---|---|---|
| Oct 23, 2026 to Apr 3, 2027 | 5 hours 30 minutes ahead | 9:00 AM IST = 2:30 PM AEDT |
| Apr 3, 2027 to Oct 2, 2027 | 4 hours 30 minutes ahead | 9:00 AM IST = 1:30 PM AEST |
| Oct 2, 2027 onwards | 5 hours 30 minutes ahead | 9:00 AM IST = 2:30 PM AEDT |
IST to AEST conversion table
Every hour of a weekday around Oct 23, 2026, in both zones.
| India Standard Time | Australian Eastern Time |
|---|---|
| 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 (next day) |
| 8:00 PM | 1:30 AM (next day) |
| 9:00 PM | 2:30 AM (next day) |
| 10:00 PM | 3:30 AM (next day) |
| 11:00 PM | 4:30 AM (next day) |
Best time for a meeting
Normal 9-to-5 working hours overlap for 2 hours 30 minutes on a weekday: 9:00 AM–11:30 AM IST, which is 2:30 PM–5:00 PM AEDT.
Comparing more than two places? The meeting planner lines up working hours for up to six cities.
Daylight saving time
Australian Eastern Time (AEST/AEDT)
- Apr 4, 2027: clocks go back 1 hour at 3:00 AM (UTC+11 → UTC+10)
- Oct 3, 2027: clocks go forward 1 hour at 2:00 AM (UTC+10 → UTC+11)
Where these clocks are used
- India Standard Time (IST): all of India: Mumbai, Delhi, Bengaluru, Chennai. IANA zone
Asia/Kolkata. - Australian Eastern Time (AEST/AEDT): Sydney, Melbourne, Canberra (Brisbane stays on AEST all year). IANA zone
Australia/Sydney.
Questions
What time is it in AEST when it is 9 AM IST?
On Oct 23, 2026, 9:00 AM IST is 2:30 PM AEDT. On other dates the answer can shift by an hour because of daylight saving time; the table of periods on this page gives each one.
How many hours ahead of IST is AEST?
It depends on the date. Oct 23, 2026 to Apr 3, 2027: AEST is 5 hours 30 minutes ahead. Apr 3, 2027 to Oct 2, 2027: AEST is 4 hours 30 minutes ahead. Oct 2, 2027 onwards: AEST is 5 hours 30 minutes ahead.
Do IST and AEST observe daylight saving time?
India Standard Time stays on UTC+5:30 all year. Australian Eastern Time switches to AEDT (UTC+11) in summer and back to AEST (UTC+10) in winter.
What is the best time for a meeting between IST and AEST?
Normal 9-to-5 working hours overlap for 2 hours 30 minutes on a weekday: 9:00 AM–11:30 AM IST, which is 2:30 PM–5:00 PM AEDT.
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Related conversions
- AEST to IST (reverse)
- EST to AEST
- CST to AEST
- MST to AEST
- PST to AEST
- UTC to AEST
- GMT to AEST
- CET to AEST
- IST to EST
- IST to CST
- IST to MST
- IST to PST
- All time zones
Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.