World Timezones

IST to AEST Converter

Compare AEST to IST instead
India Standard Time10:06 amFri, Jun 5
India Standard TimeIST
Asia · UTC+5:30
10:06 amFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Australian Eastern TimeAEST
Oceania · UTC+10
2:36 pmFri, Jun 5
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a

Offset

The time difference between India Standard Time and Australian Eastern Time is 4.5 hours.

4.5 hours

India Standard Time (IST) is behind Australian Eastern Time (AEST).

IST: UTC+5:30

AEST: UTC+10

Neither India Standard Time nor Australian Eastern Time is currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–1 PM in India Standard Time (1 PM–5 PM in Australian Eastern Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 11:00 AM India Standard Time (3:30 PM Australian Eastern Time).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Australia

  • New Year's DayThu, Jan 1
  • Australia DayMon, Jan 26
  • Good FridayFri, Apr 3
  • Easter MondayMon, Apr 6
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

About these zones

India Standard Time is also known as IST. To call India, dial +91.

Australian Eastern Time is also known as AEST, or AEDT. To call Australia, dial +61.

Australian Eastern Time is approximately 6,300 miles southeast of India Standard Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

ISTAESTDay
12:00 am4:30 amSame day
1:00 am5:30 amSame day
2:00 am6:30 amSame day
3:00 am7:30 amSame day
4:00 am8:30 amSame day
5:00 am9:30 amSame day
6:00 am10:30 amSame day
7:00 am11:30 amSame day
8:00 am12:30 pmSame day
9:00 am1:30 pmSame day
10:00 am2:30 pmSame day
11:00 am3:30 pmSame day
12:00 pm4:30 pmSame day
1:00 pm5:30 pmSame day
2:00 pm6:30 pmSame day
3:00 pm7:30 pmSame day
4:00 pm8:30 pmSame day
5:00 pm9:30 pmSame day
6:00 pm10:30 pmSame day
7:00 pm11:30 pmSame day
8:00 pm12:30 am+1 day
9:00 pm1:30 am+1 day
10:00 pm2:30 am+1 day
11:00 pm3:30 am+1 day

Daylight saving time

Australian Eastern Time observes daylight saving time; India Standard Time does not. The offset between the two zones changes when Australian Eastern Time transitions: on Sunday, October 4, 2026, clocks spring forward from AEST to AEDT.

See the daylight saving time page for transition dates across every time zone.

Daylight today

India Standard Time
Sunrise
6:01 AM
Sunset
7:15 PM
Day length
13h 14m
Australian Eastern Time
Sunrise
6:54 AM
Sunset
4:54 PM
Day length
10h

Daylight overlap: 6h 23m — 6:01 AM–12:24 PM in India Standard Time (10:31 AM–4:54 PM in Australian Eastern Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Australian Eastern Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in India Standard Time

  • BOM
  • NMI
  • DEL
  • BLR
  • HYD
  • AMD
  • MAA
  • CCU
  • STV
  • PNQ

Airports in Australian Eastern Time

  • SYD
  • CBR

Related conversions

Common conversions

What is 9:00 am IST in AEST?
9:00 am IST is 1:30 pm AEST.
What is 12:00 pm IST in AEST?
12:00 pm IST is 4:30 pm AEST.
What is 12:30 pm IST in AEST?
12:30 pm IST is 5:00 pm AEST.
What is 2:00 pm IST in AEST?
2:00 pm IST is 6:30 pm AEST.
What is 5:00 pm IST in AEST?
5:00 pm IST is 9:30 pm AEST.
What is 11:30 pm IST in AEST?
11:30 pm IST is 4:00 am AEST, the next day.