What is the time difference between Delhi and Sydney?

Sydney is 4 hours 30 minutes ahead of Delhi. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Sydney from Delhi?

Between 09:00–13:30 in Delhi, which is 13:30–18:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Delhi observe daylight saving time?

No. Delhi stays on UTC+5:30 all year, so its clocks never move.

Does Sydney observe daylight saving time?

Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.

If it is midday in Delhi, what time is it in Sydney?

It is 16:30 in Sydney, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Delhi and Sydney use?

Delhi uses Asia/Kolkata, currently UTC+5:30 (IST), and Sydney uses Australia/Sydney, currently UTC+10 (AEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Delhi time to Sydney time

Sydney is 4 hours 30 minutes ahead of Delhi right now, so midday in Delhi lands in the afternoon in Sydney.

Convert a time

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Date

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Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

The whole day mapped across: read down the left for Delhi, across for Sydney.

Delhi	Sydney
00:00	04:30
01:00	05:30
02:00	06:30
03:00	07:30
04:00	08:30
05:00	09:30
06:00	10:30
07:00	11:30
08:00	12:30
09:00	13:30
10:00	14:30
11:00	15:30
12:00	16:30
13:00	17:30
14:00	18:30
15:00	19:30
16:00	20:30
17:00	21:30
18:00	22:30
19:00	23:30
20:00	00:30next day
21:00	01:30next day
22:00	02:30next day
23:00	03:30next day

Daylight saving time

Sydney changes its clocks; Delhi does not. The difference between them therefore shifts by an hour twice a year.

Delhi

Does not observe daylight saving time

Standard: UTC+5:30

Sydney

Observes daylight saving time

Standard: UTC+10
Daylight: UTC+11
Next change: 2026-10-04 +60m

When you can actually talk

You have 4 hours 30 minutes of shared working time: 09:00–13:30 in Delhi, which is 13:30–18:00 in Sydney.

Delhi 09:00–13:30Sydney 13:30–18:00

Reference

The zone identifiers and offsets behind everything above.

	Delhi	Sydney
IANA zone	Asia/Kolkata	Australia/Sydney
Abbreviation	IST	AEST
Standard offset	UTC+5:30	UTC+10
Daylight offset	—	UTC+11
Clock changes this year	0	2
Country	India	Australia

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Delhi and Sydney?: Sydney is 4 hours 30 minutes ahead of Delhi. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Sydney from Delhi?: Between 09:00–13:30 in Delhi, which is 13:30–18:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Delhi observe daylight saving time?: No. Delhi stays on UTC+5:30 all year, so its clocks never move.
Does Sydney observe daylight saving time?: Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.
If it is midday in Delhi, what time is it in Sydney?: It is 16:30 in Sydney, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Delhi and Sydney use?: Delhi uses Asia/Kolkata, currently UTC+5:30 (IST), and Sydney uses Australia/Sydney, currently UTC+10 (AEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.