IST to AEST Converter
AEST is 4 hours and 30 minutes ahead of IST
IST to AEST Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in AEST
| IST | AEST |
|---|---|
| 12:00 AM | 4:30 AM |
| 1:00 AM | 5:30 AM |
| 2:00 AM | 6:30 AM |
| 3:00 AM | 7:30 AM |
| 4:00 AM | 8:30 AM |
| 5:00 AM | 9:30 AM |
| 6:00 AM | 10:30 AM |
| 7:00 AM | 11:30 AM |
| 8:00 AM | 12:30 PM |
| 9:00 AM | 1:30 PM |
| 10:00 AM | 2:30 PM |
| 11:00 AM | 3:30 PM |
| 12:00 PM | 4:30 PM |
| 1:00 PM | 5:30 PM |
| 2:00 PM | 6:30 PM |
| 3:00 PM | 7:30 PM |
| 4:00 PM | 8:30 PM |
| 5:00 PM | 9:30 PM |
| 6:00 PM | 10:30 PM |
| 7:00 PM | 11:30 PM |
| 8:00 PM | 12:30 AM +1d |
| 9:00 PM | 1:30 AM +1d |
| 10:00 PM | 2:30 AM +1d |
| 11:00 PM | 3:30 AM +1d |
Converting India Standard Time to Australian Eastern Standard Time
India Standard Time (IST) and Australian Eastern Standard Time (AEST) are separated by a 4 hours and 30 minutes time difference. AEST is 4 hours and 30 minutes ahead of IST. IST is UTC+5:30, used in India, Sri Lanka, while AEST is UTC+10, used in Australia.
When converting from IST to AEST, the key reference points to remember are: 9:00 AM IST equals 1:30 PM AEST, 12:00 PM noon IST equals 4:30 PM AEST, and 5:00 PM IST equals 9:30 PM AEST. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across IST and AEST
For professionals scheduling meetings between IST and AEST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 4 hours and 30 minutes difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
IST does not observe Daylight Saving Time, maintaining UTC+5:30 year-round. AEST observes DST, switching to AEDT (UTC+11). During DST transitions, the time difference between these zones may temporarily change by 1 hour. Always verify the current offset during spring and fall transition periods.