AEST to IST
On Oct 23, 2026, India Standard Time is 5 hours 30 minutes behind Australian Eastern Time: 9:00 AM AEDT is 3:30 AM IST. The gap changes during the year because of daylight saving time; the dates are below.
IST vs AEST over the next 12 months
| Period | IST is | Example |
|---|---|---|
| Oct 23, 2026 to Apr 4, 2027 | 5 hours 30 minutes behind | 9:00 AM AEDT = 3:30 AM IST |
| Apr 4, 2027 to Oct 3, 2027 | 4 hours 30 minutes behind | 9:00 AM AEST = 4:30 AM IST |
| Oct 3, 2027 onwards | 5 hours 30 minutes behind | 9:00 AM AEDT = 3:30 AM IST |
AEST to IST conversion table
Every hour of a weekday around Oct 23, 2026, in both zones.
| Australian Eastern Time | India Standard Time |
|---|---|
| 12:00 AM | 6:30 PM (previous day) |
| 1:00 AM | 7:30 PM (previous day) |
| 2:00 AM | 8:30 PM (previous day) |
| 3:00 AM | 9:30 PM (previous day) |
| 4:00 AM | 10:30 PM (previous day) |
| 5:00 AM | 11:30 PM (previous day) |
| 6:00 AM | 12:30 AM |
| 7:00 AM | 1:30 AM |
| 8:00 AM | 2:30 AM |
| 9:00 AM | 3:30 AM |
| 10:00 AM | 4:30 AM |
| 11:00 AM | 5:30 AM |
| 12:00 PM | 6:30 AM |
| 1:00 PM | 7:30 AM |
| 2:00 PM | 8:30 AM |
| 3:00 PM | 9:30 AM |
| 4:00 PM | 10:30 AM |
| 5:00 PM | 11:30 AM |
| 6:00 PM | 12:30 PM |
| 7:00 PM | 1:30 PM |
| 8:00 PM | 2:30 PM |
| 9:00 PM | 3:30 PM |
| 10:00 PM | 4:30 PM |
| 11:00 PM | 5:30 PM |
Best time for a meeting
Normal 9-to-5 working hours overlap for 2 hours 30 minutes on a weekday: 2:30 PM–5:00 PM AEDT, which is 9:00 AM–11:30 AM IST.
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
- Australian Eastern Time (AEST/AEDT): Sydney, Melbourne, Canberra (Brisbane stays on AEST all year). IANA zone
Australia/Sydney. - India Standard Time (IST): all of India: Mumbai, Delhi, Bengaluru, Chennai. IANA zone
Asia/Kolkata.
Questions
What time is it in IST when it is 9 AM AEST?
On Oct 23, 2026, 9:00 AM AEDT is 3:30 AM IST. 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 behind AEST is IST?
It depends on the date. Oct 23, 2026 to Apr 4, 2027: IST is 5 hours 30 minutes behind. Apr 4, 2027 to Oct 3, 2027: IST is 4 hours 30 minutes behind. Oct 3, 2027 onwards: IST is 5 hours 30 minutes behind.
Do AEST and IST observe daylight saving time?
Australian Eastern Time switches to AEDT (UTC+11) in summer and back to AEST (UTC+10) in winter. India Standard Time stays on UTC+5:30 all year.
What is the best time for a meeting between AEST and IST?
Normal 9-to-5 working hours overlap for 2 hours 30 minutes on a weekday: 2:30 PM–5:00 PM AEDT, which is 9:00 AM–11:30 AM IST.
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Related conversions
- IST to AEST (reverse)
- EST to IST
- CST to IST
- MST to IST
- PST to IST
- UTC to IST
- GMT to IST
- CET to IST
- SGT to IST
- JST to IST
- AEST to EST
- AEST to CST
- 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.