Australian Eastern Time is 4.5 hours ahead of IST (AEST) or 5.5 hours ahead (AEDT)
What is the time difference between IST and Australia?
The time difference between Indian Standard Time (IST) and Australian Eastern Time depends on whether Daylight Saving Time is in effect. During standard time (AEST), Australia is 4 hours and 30 minutes ahead. During daylight time (AEDT), Australia is 5 hours and 30 minutes ahead.