IST to AEST converter

India Standard Time (IST) is UTC+5:30 with no daylight saving. It covers Mumbai, Delhi, Bengaluru and Chennai.

Australian Eastern Time (AEST) is UTC+10 and observes daylight saving (AEDT, UTC+11, roughly October–April). It covers Sydney, Melbourne and Canberra.

Australian Eastern Time is typically 4½ hours ahead of India Standard Time, though daylight saving can shift the difference by an hour at some times of year.

Best time to call Australian Eastern Time from India Standard Time

Office hours overlap for about 3.5 hours a day: 9:00 AM–12:30 PM in India Standard Time is 1:30 PM–5:00 PM in Australian Eastern Time. Book calls inside this window and nobody is out of hours. Daylight saving can shift these times by an hour at some points in the year.