Highlighted rows fall within 09:00–18:00 in both places: 4 shared working hours.
Clock changes in IST and Sydney
IST
India Standard Time (IST)
No daylight saving time.
Sydney
Australian Eastern Daylight Time (AEDT)
Next clock change Sun 4 Apr 2027 (UTC+11 → UTC+10)
Time difference between IST and Sydney today
At this moment Sydney is 5.5 hours ahead of IST. When it is 09:00 in IST, it is 14:30 in Sydney. IST is on India Standard Time (IST); Sydney is on Australian Eastern Daylight Time (AEDT).
When the IST to Sydney time difference changes
For most of the year Sydney is 5.5 hours ahead of IST. From 4 April to 2 October 2027, Sydney is 4.5 hours ahead of IST instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
Sydney vs IST
Length
4 October 2026 to 31 December 2026
5.5 hours ahead
89 days
1 January 2027 to 3 April 2027
5.5 hours ahead
93 days
4 April 2027 to 2 October 2027
4.5 hours ahead
182 days
3 October 2027 to 31 December 2027
5.5 hours ahead
90 days
Calling hours for IST and Sydney
When Sydney is 5.5 hours ahead of IST: 3 shared office hours, 09:00 to 12:00 in IST (14:30 to 17:30 in Sydney).
When Sydney is 4.5 hours ahead of IST: 4 shared office hours, 09:00 to 13:00 in IST (13:30 to 17:30 in Sydney).
Frequently asked questions about IST and Sydney time
What time is it in Sydney when it is 9:00 AM in IST?
14:30 today; Sydney is 5.5 hours ahead of IST.
Does the time difference between IST and Sydney change?
Yes. It is usually 5.5 hours ahead, but changes when one side moves its clocks: 4.5 hours ahead from 4 April to 2 October 2027.