Question 1

What is the time difference between IST and AEST?

Accepted Answer

Australian Eastern Standard Time (AEST) is 5 hours and 30 minutes ahead of India Standard Time (IST). Use the conversion table above to see the exact time for each hour.

Question 2

How do I convert IST to AEST?

Accepted Answer

To convert IST to AEST, add 5 hours and 30 minutes to the IST time. For example, 9:00 AM IST is 2:30 PM AEST.

Question 3

What time is it in AEST when it's noon in IST?

Accepted Answer

When it's 12:00 PM (noon) in IST, it's 5:30 PM in AEST. AEST is 5 hours and 30 minutes ahead of IST.

Question 4

How many hours ahead is AEST from IST?

Accepted Answer

AEST is 5 hours and 30 minutes ahead of IST. This means when it's 9:00 AM in IST, it's 2:30 PM in AEST.

Question 5

Is AEST ahead or behind IST?

Accepted Answer

AEST is ahead of IST by 5 hours and 30 minutes. Clocks in AEST show a later time than IST.

Question 6

Does IST observe daylight saving time?

Accepted Answer

No, India Standard Time does not observe daylight saving time. The UTC offset remains the same year-round.

Question 7

Does AEST observe daylight saving time?

Accepted Answer

Yes, Australian Eastern Standard Time observes daylight saving time. During DST, the abbreviation changes to AEDT and clocks move forward by one hour.

Question 8

What is the best time to call from IST to AEST?

Accepted Answer

The best time for a call between IST and AEST is during overlapping business hours (9 AM – 5 PM) in both timezones. Check the color-coded conversion table above — green hours indicate business hours in both zones.

Question 9

When does daylight saving time change in AEST?

Accepted Answer

Daylight saving time transitions vary by year and region. Australian Eastern Standard Time observes DST, which typically shifts clocks forward by one hour in spring and back in fall. During DST transitions, the time difference between IST and AEST may temporarily change. Check our DST change calendar for exact dates.

Question 10

Do IST and AEST ever have the same time?

Accepted Answer

No, IST and AEST never show the same time. However, because AEST observes daylight saving time and IST does not, the time difference between them changes by one hour during DST transitions.

India Standard Time (IST)	Period	Australian Eastern Standard Time (AEDT)	Period
12:00 AM	Night	5:30 AM	Night
1:00 AM	Night	6:30 AM	Morning
2:00 AM	Night	7:30 AM	Morning
3:00 AM	Night	8:30 AM	Morning
4:00 AM	Night	9:30 AM	Business
5:00 AM	Night	10:30 AM	Business
6:00 AM	Morning	11:30 AM	Business
7:00 AM	Morning	12:30 PM	Business
8:00 AM	Morning	1:30 PM	Business
9:00 AM	Business	2:30 PM	Business
10:00 AM	Business	3:30 PM	Business
11:00 AM	Business	4:30 PM	Business
12:00 PM	Business	5:30 PM	Business
1:00 PM	Business	6:30 PM	Evening
2:00 PM	Business	7:30 PM	Evening
3:00 PM	Business	8:30 PM	Evening
4:00 PM	Business	9:30 PM	Evening
5:00 PM	Business	10:30 PM	Evening
6:00 PM	Evening	11:30 PM	Evening
7:00 PM	Evening	12:30 AM+1d	Night
8:00 PM	Evening	1:30 AM+1d	Night
9:00 PM	Evening	2:30 AM+1d	Night
10:00 PM	Evening	3:30 AM+1d	Night
11:00 PM	Evening	4:30 AM+1d	Night

IST to AEST Converter

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IST to AEST Conversion Table

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