AEST to IST Time Converter
Convert Australian Eastern Time to India Standard Time. Right now, AEST is 4h 30m ahead of IST.
Time Zone Converter
Click any hour to see what it lands on in every city. The first row's hours run 12am to 11pm — every other row is its local time at the same instant.
When it's this time in Sydney:
| Sydney | Delhi |
|---|---|
| 6:00 AM | 1:30 AM |
| 9:00 AM | 4:30 AM |
| 12:00 PM | 7:30 AM |
| 3:00 PM | 10:30 AM |
| 6:00 PM | 1:30 PM |
| 9:00 PM | 4:30 PM |
About AEST and IST
AEST (Australian Eastern Time) covers Australia and is anchored to the IANA zone Australia/Sydney. It observes daylight saving time, so the offset shifts by one hour twice a year.
IST (India Standard Time) covers India via Asia/Kolkata. It does not observe daylight saving time.
Because at least one of these zones uses DST, the time difference between AEST and IST is not constant — it shifts by an hour during the spring and autumn DST transitions. The hour grid below recomputes the difference for any specific date you click, using the IANA rules baked into your browser.
FAQ
- How many hours difference between AEST and IST?
- Right now, AEST is 4h 30m ahead of IST. Because at least one of these zones observes daylight saving time, the gap shifts by an hour twice a year (spring and autumn). The hour grid above recomputes correctly for any specific date.
- What time is 9 AM AEST in IST?
- 9 AM AEST (Sydney) is 4:30 AM IST (Delhi) today. Click any cell in the grid above to convert other times — the math handles DST and half-hour offsets correctly.
- Does AEST observe daylight saving time?
- Yes. Australian Eastern Time shifts forward by one hour in the spring and back in the autumn. The exact dates depend on the country's rules — the IANA timezone database tracks them all and updates automatically.
- What's the IANA timezone identifier for AEST and IST?
- AEST → Australia/Sydney. IST → Asia/Kolkata. We use IANA identifiers (not GMT offsets) as the source of truth so historical and future dates remain accurate, including across DST changes and political timezone shifts.
- Where can I see the overlap between AEST and IST working hours?
- Click "Working hrs" in the toolbar above to highlight hours where all selected cities have overlapping business hours. The amber highlight shows which columns work for scheduling meetings across time zones.
- Which countries use AEST and IST?
- AEST (Australian Eastern Time) is used in Australia. IST (India Standard Time) is used in India. If you're converting time between any of these countries, this is the right page.