Australian Eastern Standard Time to India Standard Time, with the offset for today's date rather than an average.
IST time
India Standard Time is behind Australian Eastern Standard Time — noon in AEST is 7:00 am in IST
AEST todayUTC+10:00
IST todayUTC+05:30
Working-hour overlap3 h
Common meeting hours converted from AEST to IST
AEST (Australian Eastern Standard Time)
IST (India Standard Time)
Working hours in both?
7:00 am
2:00 am
No
8:00 am
3:00 am
No
9:00 am
4:00 am
No
10:00 am
5:00 am
No
11:00 am
6:00 am
No
12:00 pm
7:00 am
No
1:00 pm
8:00 am
No
2:00 pm
9:00 am
Yes
3:00 pm
10:00 am
Yes
4:00 pm
11:00 am
Yes
5:00 pm
12:00 pm
No
6:00 pm
1:00 pm
No
7:00 pm
2:00 pm
No
8:00 pm
3:00 pm
No
This calculator needs JavaScript to recalculate. Without it you are
reading the answer worked out on 28 August 2026, which is exact for that date and does not
change by itself. With JavaScript on, the page works the answer out again for the date you
open it.
Worked out for
· conventions last checked
Which zone this page means. AEST applies in winter; AEDT (UTC+11) applies from the first Sunday in October to the first Sunday in April. Australian seasons are reversed, so summer time runs over the southern summer. Queensland stays on AEST all year. IST means India Standard Time (UTC+5:30), Irish Standard Time (UTC+1) and Israel Standard Time (UTC+2). This page means the Indian zone, which is one of the few on a half-hour offset.
AEST is ahead of IST by 4.5 hours today
On 28 August 2026, Australian Eastern Standard Time is on AEST at
UTC+10:00 and India Standard Time is on IST at
UTC+05:30. The gap between them is 4.5 hours, with IST behind. So 9:00 am in AEST is
4:00 am in IST, and 5:00 pm in AEST is
12:00 pm in IST. Going the other way, see IST to AEST.
The gap is not constant, and that is the part that catches people out
Australian Eastern Standard Time is currently on standard time and changes next on 4 October 2026, when clocks go forward an hour. India Standard Time does not observe daylight saving at all, so the whole of the seasonal change comes
from the AEST side: the gap moves by an hour twice a year even though nothing changes in
India Standard Time.
When you can actually both be at work
Taking a working day as 9:00 am to 5:00 pm local at each end, there
are3 overlapping hours
in a normal day. In AEST that window runs from 2:00 pm to 5:00 pm, which is 9:00 am to 12:00 pm in IST. Anything outside it needs one side to start early or finish late.
Zone rules are set by legislation and change, sometimes at short notice. This page is
built against tzdata 2026a, last reviewed
2026-08-18. Quarterly. Zone rules change by legislation, sometimes at short notice. Version and review date are shown on every zone page. The converter above reads
your browser's own copy of the zone database, so if a rule has changed since this page was built the
live answer follows the new rule — and so does everything above, which is worked out from the same
database when you open the page.
Every convention used above — whether the start date counts, how month ends are
clamped, which holidays close an office — is written out on the
methodology page, including the daylight-saving rules behind the 4.5-hour gap above.
The current offset is shown at the top of this page. It is computed for today's date rather than quoted as an average, because the two regions change their clocks on different dates and the gap is different for a few weeks each year.
Is AEST the same as Australian Eastern Standard Time all year?
Not necessarily. Standard time and summer time are separate zones with separate abbreviations, so much of the year the technically correct abbreviation is the daylight one. The page states which is in force on today's date.
When do the clocks change in these zones?
The next change date for each zone is shown in the result panel, along with what the offset becomes afterwards.
What is a good meeting time between AEST and IST?
The business-hours overlap window is shown below the converter. Where there is no overlap the page says so rather than suggesting an impossible time.
This page could not bring itself up to date in your
browser, so the dates above are the ones worked out on 28 August 2026. They are exact for
that date and do not change by themselves. Enter your own dates in the calculator above for an
answer worked out now.