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DateAlmanac

What is IST in AEST?

Australian Eastern Time is 5 hours 30 minutes ahead

India Standard Time is on UTC+5:30 and Australian Eastern Time is on UTC+11:00 right now. Australian Eastern Time is on daylight saving, so its clocks read AEDT. The gap changes during the year — see below.

Convert a time

AEDT — Australian Eastern Time

6:30 pm

AEDT, Sat

Time in New Delhi
1:59:39 PM
Time in Sydney
7:29:39 PM
Difference
+5:30 h
Next clock change
April 4, 2027

When the difference changes

India Standard Time and Australian Eastern Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:

  1. Now – April 3, 2027Australian Eastern Time is 5 hours 30 minutes ahead
  2. April 3, 2027 – October 2, 2027Australian Eastern Time is 4 hours 30 minutes ahead
  3. October 2, 2027 – onwardsAustralian Eastern Time is 5 hours 30 minutes ahead

Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.

Daylight saving

India Standard Time

No clock changes

India Standard Time stays on IST all year, so its offset from UTC never moves.

Australian Eastern Time

Sunday, April 4, 2027

Clocks go back one hour — 3:00 am becomes 2:00 am local time, and the zone is on AEST after that.

IST to AEST conversion table

Every hour of Saturday, November 7, 2026, converted from India Standard Time to Australian Eastern Time. 5 of the 24 hours fall on a different calendar day in Sydney, which is marked.

12:00 am IST
5:30 am AEDT
1:00 am IST
6:30 am AEDT
2:00 am IST
7:30 am AEDT
3:00 am IST
8:30 am AEDT
4:00 am IST
9:30 am AEDT
5:00 am IST
10:30 am AEDT
6:00 am IST
11:30 am AEDT
7:00 am IST
12:30 pm AEDT
8:00 am IST
1:30 pm AEDT
9:00 am IST
2:30 pm AEDT
10:00 am IST
3:30 pm AEDT
11:00 am IST
4:30 pm AEDT
12:00 pm IST
5:30 pm AEDT
1:00 pm IST
6:30 pm AEDT
2:00 pm IST
7:30 pm AEDT
3:00 pm IST
8:30 pm AEDT
4:00 pm IST
9:30 pm AEDT
5:00 pm IST
10:30 pm AEDT
6:00 pm IST
11:30 pm AEDT
7:00 pm IST
12:30 am AEDT+1 day
8:00 pm IST
1:30 am AEDT+1 day
9:00 pm IST
2:30 am AEDT+1 day
10:00 pm IST
3:30 am AEDT+1 day
11:00 pm IST
4:30 am AEDT+1 day

Scheduling between the two

Working hours overlap from 9:00 am to 1:00 pm IST, which is 2:30 pm to 6:30 pm AEDT. Anything inside that window falls in the normal working day at both ends.

A note on IST: it can also mean Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1). This page means India Standard Time, which is what almost all searches for IST want.

India Standard Time (IST) is used in all of India and Sri Lanka, on a single UTC+5:30 offset with no daylight saving

Australian Eastern Time (AEDT) is used in Melbourne, Canberra and Brisbane. Queensland stays on AEST all year while the southern states move to AEDT.

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