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Time zonesLive · DST-aware

IST to AEST Converter

See the current time in IST (India) and AEST (Sydney) side by side, the exact time difference right now, and convert any time between the two zones.

Quick presets

IST to AEST Converter

IST
India
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AEST
Sydney
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Uses your browser's built-in, DST-aware time-zone data.

ToolFeather · Intl API

About converting IST to AEST

India Standard Time (India) and Australian Eastern Time (Sydney) are in different time zones, so a meeting, call or stream that's convenient in one may be early or late in the other. The clocks above update live and account for daylight saving automatically, so the time difference you see is the real one for today — not a fixed number that goes stale twice a year.

To plan across the two, type a time into the IST box (or tap a quick preset) and read the AEST equivalent, including a "next day" or "previous day" note when the conversion crosses midnight. For any other pair of zones or cities, use the full timezone converter.

IST vs AEST: the time difference through the year

The gap between IST and AEST changes during the year because only one of them uses daylight saving.

PeriodDifference
Oct 23, 2026 – Apr 3, 2027AEST 5 h 30 min ahead of IST
Apr 4, 2027 – Oct 2, 2027AEST 4 h 30 min ahead of IST
Oct 3, 2027 – Oct 23, 2027AEST 5 h 30 min ahead of IST

Daylight-saving changes in the next year

ZoneDateOffsetChange
AESTApr 4, 2027UTC+11 → UTC+10Clocks go back 1 hour
AESTOct 3, 2027UTC+10 → UTC+11Clocks go forward 1 hour

IST to AEST conversion table

ISTAEST (when 5 h 30 min ahead)AEST (when 4 h 30 min ahead)
12:00 AM5:30 AM4:30 AM
1:00 AM6:30 AM5:30 AM
2:00 AM7:30 AM6:30 AM
3:00 AM8:30 AM7:30 AM
4:00 AM9:30 AM8:30 AM
5:00 AM10:30 AM9:30 AM
6:00 AM11:30 AM10:30 AM
7:00 AM12:30 PM11:30 AM
8:00 AM1:30 PM12:30 PM
9:00 AM2:30 PM1:30 PM
10:00 AM3:30 PM2:30 PM
11:00 AM4:30 PM3:30 PM
12:00 PM5:30 PM4:30 PM
1:00 PM6:30 PM5:30 PM
2:00 PM7:30 PM6:30 PM
3:00 PM8:30 PM7:30 PM
4:00 PM9:30 PM8:30 PM
5:00 PM10:30 PM9:30 PM
6:00 PM11:30 PM10:30 PM
7:00 PM12:30 AM (next day)11:30 PM
8:00 PM1:30 AM (next day)12:30 AM (next day)
9:00 PM2:30 AM (next day)1:30 AM (next day)
10:00 PM3:30 AM (next day)2:30 AM (next day)
11:00 PM4:30 AM (next day)3:30 AM (next day)

Best time to meet

The two zones

IST · India Standard Time

India Standard Time is UTC+5:30 all year — one of the few half-hour offsets. India uses a single time zone and has no daylight saving.

AEST · Australian Eastern Time

Sydney is on AEST (UTC+10) from April to October and on daylight-saving AEDT (UTC+11) from the first Sunday in October to the first Sunday in April. Queensland (Brisbane) stays on AEST all year.

Frequently asked questions

6 answers
What is the time difference between IST and AEST?
It's shown live at the top of this page (and it can change with daylight saving). The converter uses the current, DST-aware difference between India Standard Time and Australian Eastern Time, so the time you see is always right for right now.
How do I convert IST to AEST?
Enter a time in the IST box and the equivalent AEST time appears instantly, adjusted for the current offset between the two zones — including a note if it lands on the previous or next day.
Is this IST to AEST converter accurate with daylight saving?
Yes. It uses your browser's built-in time-zone database (the IANA zones behind India and Sydney), which tracks daylight-saving changes automatically, so the current times and difference are correct.
What time is it in Sydney right now?
The live clock above shows the current time in Sydney (AEST), updating every second, alongside IST.
Does the IST to AEST time difference change?
Yes. Over the next 12 months it is 5 h 30 min ahead or 4 h 30 min ahead, depending on the date — see the table of periods on this page.
What is a good meeting time for IST and AEST?
Office hours overlap from 9:00 AM to 11:30 AM IST (2:30 PM to 5:00 PM AEST).