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IST to AET time converter
Sydney is 5.5 hours ahead of India for 183 days of 2026, and 4.5 hours ahead of for the other 182 days, because daylight saving changes the gap.
IST to AET conversion table
Local time in India and the matching time in Sydney on two reference dates, one in winter and one in summer for the northern hemisphere.
| India (IST) | Sydney on 15 January | Sydney on 15 July |
|---|---|---|
| 08:00 | 13:30 | 12:30 |
| 09:00 | 14:30 | 13:30 |
| 10:00 | 15:30 | 14:30 |
| 12:00 | 17:30 | 16:30 |
| 15:00 | 20:30 | 19:30 |
| 17:00 | 22:30 | 21:30 |
| 18:00 | 23:30 | 22:30 |
| 21:00 | 02:30 (+1 day) | 01:30 (+1 day) |
Best meeting times between India and Sydney
- January: Inside both working days (09:00-17:00): 09:00-11:30 IST = 14:30-17:00 AET.
- July: Inside both working days (09:00-17:00): 09:00-12:30 IST = 13:30-17:00 AET.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between IST and AET
- India does not change its clocks in 2026.
- Sydney moves its clocks back on 5 April and forward on 4 October in 2026.
- The gap is 5.5 hours for 183 days and 4.5 hours for 182 days of 2026.
About the two zones
India. India uses a single time zone, UTC+5:30, all year. It does not observe daylight saving, so the gap to zones that do changes twice a year.
Sydney. Sydney is on AEST (UTC+10) in winter and AEDT (UTC+11) in summer. Because it is in the southern hemisphere, its summer time runs from October to April, the opposite of Europe and North America.
Frequently asked questions
What time is 9 AM IST in AET?
On 15 January, 09:00 in India is 14:30 in Sydney. On 15 July it is 13:30.
What is the time difference between India and Sydney?
Sydney is 5.5 hours ahead of India for 183 days of 2026, and 4.5 hours ahead of for the other 182 days, because daylight saving changes the gap.
Does the time difference between IST and AET change during the year?
Yes. Sydney changes its clocks and India does not, so the gap moves between 5.5 and 4.5 hours. Always convert with the actual date.
When is the best time for a meeting between India and Sydney?
Inside both working days (09:00-17:00): 09:00-11:30 IST = 14:30-17:00 AET. In July: Inside both working days (09:00-17:00): 09:00-12:30 IST = 13:30-17:00 AET.
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.