Time Difference: India and Sydney
Sydney is 4 hours 30 minutes ahead of India on AEST and 5 hours 30 minutes ahead on AEDT. 9:00 AM in India is 1:30 PM in Sydney on AEST and 2:30 PM on AEDT.
Daylight saving note: India never changes its clocks. Sydney is 4 hours 30 minutes ahead from the first Sunday in April to the first Sunday in October, and 5 hours 30 minutes ahead for the rest of the year.
Which Sydney Clock You Are Converting To
India is UTC+5:30 all year. Sydney is UTC+10 on AEST and UTC+11 on AEDT, so the gap is 4 hours 30 minutes in one half of the year and 5 hours 30 minutes in the other. The part that confuses people is that Sydney's "summer time" runs from early October to early April.
That means Sydney's clock change is the opposite of the UK and US ones. When Europe and America move forward in March, Sydney moves back a few weeks later. Sydney's change dates are the first Sunday in October (forward) and the first Sunday in April (back).
Two quick checks. 2:00 PM in India is 6:30 PM in Sydney on AEST and 7:30 PM on AEDT. And 9:00 AM in Sydney is 4:30 AM in India on AEST and 3:30 AM on AEDT.
India to Sydney Conversion Table
Each column is one real season of the India-Sydney gap. Pick the column that matches your date.
| 🇮🇳 India (IST) | 🇦🇺 Sydney (IST → AEST) | 🇦🇺 Sydney (IST → AEDT) |
|---|---|---|
| 00:00 | 04:30 | 05:30 |
| 03:00 | 07:30 | 08:30 |
| 06:00 | 10:30 | 11:30 |
| 09:00 | 13:30 | 14:30 |
| 12:00 | 16:30 | 17:30 |
| 15:00 | 19:30 | 20:30 |
| 18:00 | 22:30 | 23:30 |
| 21:00 | 01:30(next day) | 02:30(next day) |
- IST → AEST: first Sunday in April to first Sunday in October, while Sydney is on AEST
- IST → AEDT: first Sunday in October to first Sunday in April, while Sydney is on AEDT
* "next day" / "prev day" = the converted time falls on a different calendar date.
Best Meeting Time for India and Sydney
The overlap is a few hours at the end of the India morning. On AEST, 9:00 AM to 12:30 PM in India is 1:30 PM to 5:00 PM in Sydney, 3 hours 30 minutes. On AEDT the window shrinks to 9:00 to 11:30 AM in India, which is 2:30 PM to 5:00 PM in Sydney, 2 hours 30 minutes. Sydney's 5 PM close is the limit both times.
Avoiding India-Sydney Time Mistakes
Sydney is ahead, so a late evening in India is already the next calendar day in Sydney. With a 5 hours 30 minutes gap, that starts at 6:30 PM in India: 7:00 PM there is 12:30 AM the next day in Sydney. When the gap narrows to 4 hours 30 minutes, the date line moves to 7:30 PM.
Many Sydney calendars label the zone "AEST" all year, which is wrong from October to April. A call at 10:00 AM India time is 2:30 PM in Sydney on AEST but 3:30 PM on AEDT, so name Sydney as a city on the invite instead of an abbreviation.
A Worked Example: A Mid-Morning India Call With Sydney
Suppose an India team schedules a 10:00 AM call with Sydney. On AEST that's 2:30 PM in Sydney, and on AEDT it's 3:30 PM. A 11:00 AM start in India is 3:30 PM on AEST and 4:30 PM on AEDT.
If Sydney hosts at 3:00 PM, India joins at 10:30 AM on AEST and 9:30 AM on AEDT. India's side moves by an hour at the Sydney clock changes, so a Sydney-hosted series needs a reminder in early April and early October.
Frequently Asked Questions
What is the time difference between India and Sydney?
Sydney is 4 hours 30 minutes ahead of India while it is on AEST (April to October) and 5 hours 30 minutes ahead while it is on AEDT (October to April).
What time is 9 AM in India in Sydney?
On AEST, 9:00 AM in India is 1:30 PM in Sydney. On AEDT it's 2:30 PM. Both are the same calendar day.
When does the India-Sydney difference change?
On the first Sunday in October, when Sydney moves to AEDT and the gap grows from 4 hours 30 minutes to 5 hours 30 minutes, and on the first Sunday in April, when it narrows back. India has no change on either date.
What is the best time to schedule an India-Sydney call?
On AEST, 9:00 AM to 12:30 PM India time is 1:30 PM to 5:00 PM in Sydney. On AEDT, use 9:00 to 11:30 AM India time, which is 2:30 PM to 5:00 PM in Sydney.