IST to AEST · India → Sydney (Australia)
Hour-by-hour conversion from India Standard Time to Australian Eastern Time, with daylight-saving variants and the meeting window that works for both sides.
| IST (India) | IST → AEST (both on standard time) | IST → AEDT (early October to early April (southern-hemisphere summer)) |
|---|---|---|
| 12:00 AM | 4:30 AM | 5:30 AM |
| 6:00 AM | 10:30 AM | 11:30 AM |
| 7:00 AM | 11:30 AM | 12:30 PM |
| 8:00 AM | 12:30 PM | 1:30 PM |
| 9:00 AM | 1:30 PM | 2:30 PM |
| 10:00 AM | 2:30 PM | 3:30 PM |
| 11:00 AM | 3:30 PM | 4:30 PM |
| 12:00 PM | 4:30 PM | 5:30 PM |
| 1:00 PM | 5:30 PM | 6:30 PM |
| 2:00 PM | 6:30 PM | 7:30 PM |
| 3:00 PM | 7:30 PM | 8:30 PM |
| 4:00 PM | 8:30 PM | 9:30 PM |
| 5:00 PM | 9:30 PM | 10:30 PM |
| 6:00 PM | 10:30 PM | 11:30 PM |
| 7:00 PM | 11:30 PM | 12:30 AM (+1d) |
| 8:00 PM | 12:30 AM (+1d) | 1:30 AM (+1d) |
| 9:00 PM | 1:30 AM (+1d) | 2:30 AM (+1d) |
| 10:00 PM | 2:30 AM (+1d) | 3:30 AM (+1d) |
Notes
IST (India Standard Time, UTC+05:30) is 4h 30m behind AEST (Australian Eastern Time, UTC+10:00) when both are on standard time. Sydney (Australia) observes daylight saving (AEDT, UTC+11:00) from early October to early April (southern-hemisphere summer). During transition weeks the two regions may switch on different dates — for exact meeting times use the live converter below, which uses the IANA time-zone database.
Their 9:00–18:00 business hours overlap for about 4 hours a day — roughly 9:00 AM–1:00 PM in IST.
More conversions from IST: IST to EST · IST to CST · IST to PST · IST to GMT · IST to CET · IST to JST · IST to SGT · IST to GST
Frequently asked questions
What is the time difference between IST and AEST?
IST is 4h 30m behind AEST on standard time; daylight saving shifts this by an hour part of the year (see the table).
What time is 12 PM IST in AEST?
12:00 PM IST is 4:30 PM in AEST on standard time.
Do IST and AEST business hours overlap?
Their 9:00–18:00 business hours overlap for about 4 hours a day — roughly 9:00 AM–1:00 PM in IST.