IST to AEST Time Converter
Compare IST and AEST instantly. The clocks below stay in sync with the IANA time-zone database, so daylight-saving transitions are handled automatically for both India and Sydney.
24-Hour Comparison Timeline
Green = working hours · Yellow = early/late · Red = night
24-hour reference table
| IST (India) | AEST (Sydney) |
|---|---|
| 12:00 AM | 04:30 AM |
| 01:00 AM | 05:30 AM |
| 02:00 AM | 06:30 AM |
| 03:00 AM | 07:30 AM |
| 04:00 AM | 08:30 AM |
| 05:00 AM | 09:30 AM |
| 06:00 AM | 10:30 AM |
| 07:00 AM | 11:30 AM |
| 08:00 AM | 12:30 PM |
| 09:00 AM | 01:30 PM |
| 10:00 AM | 02:30 PM |
| 11:00 AM | 03:30 PM |
| 12:00 PM | 04:30 PM |
| 01:00 PM | 05:30 PM |
| 02:00 PM | 06:30 PM |
| 03:00 PM | 07:30 PM |
| 04:00 PM | 08:30 PM |
| 05:00 PM | 09:30 PM |
| 06:00 PM | 10:30 PM |
| 07:00 PM | 11:30 PM |
| 08:00 PM | 12:30 AM(Sun, Jul 26) |
| 09:00 PM | 01:30 AM(Sun, Jul 26) |
| 10:00 PM | 02:30 AM(Sun, Jul 26) |
| 11:00 PM | 03:30 AM(Sun, Jul 26) |
Daylight saving time
Sydney observes daylight saving time; India does not. Expect a one-hour swing when Sydney starts or ends DST.
Working-hours overlap
9 AM–1 PM IST (1 PM–5 PM AEST) — the shared 9-to-5 window for meetings.
Frequently asked questions
What is the time difference between IST and AEST?+
AEST (UTC+10:00) is currently 4 hours 30 minutes ahead of IST (UTC+05:30). This page recalculates the offset live from the IANA time-zone database, including any daylight-saving transitions.
Does IST or AEST observe daylight saving time?+
Sydney observes daylight saving time; India does not, so the gap changes when Sydney springs forward or falls back. Times on this page always reflect the current local rules.
What are the best meeting hours between India and Sydney?+
Standard 9–5 working hours in India and Sydney overlap from 9 AM to 1 PM IST (1 PM–5 PM AEST). Schedule calls inside this window to keep both sides in normal business hours.
How do I quickly convert IST to AEST?+
Use the live clocks and 24-hour reference table above. Pick any hour on the IST row to see the matching AEST time. The Event Planner also lets you pick a specific date and share it with attendees.