IST is 4 hours and 30 minutes behind AEST (winter) or 5 hours and 30 minutes behind AEDT (summer)
What is the time difference between Sydney and IST?
The time difference between Sydney and Indian Standard Time (IST) depends on whether Daylight Saving Time is in effect. During standard time (AEST), IST is 4 hours and 30 minutes behind. During daylight time (AEDT), IST is 5 hours and 30 minutes behind.