Sydney is 4 hours 30 minutes to 5 hours 30 minutes ahead of Delhi. Delhi uses India Standard Time (IST, UTC+5:30) while Sydney uses Australian Eastern Standard/Daylight Time (AEST/AEDT, UTC+10/+11). During standard time, Sydney is 4.5 hours ahead; during daylight saving time, Sydney is 5.5 hours ahead.
Sydney observes daylight saving time while Delhi does not, so the difference varies seasonally.
Best calling time: 4:30 AM - 1:30 PM Delhi time. This corresponds to 9:00 AM - 6:00 PM in Sydney during standard time. Adjust by 1 hour during Sydney's daylight saving time.
Delhi and Sydney have strong business and education connections. Australia is a popular destination for Indian students, and there's significant trade between India and Australia. Direct flights connect the cities.