What is the time difference between Adelaide and Delhi?

Delhi is 4 hours behind Adelaide. 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 Delhi from Adelaide?

Between 13:00–18:00 in Adelaide, which is 09:00–14:00 in Delhi. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Adelaide observe daylight saving time?

Yes. Adelaide runs on UTC+9:30 in winter and UTC+10:30 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.

Does Delhi observe daylight saving time?

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

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

It is 08:00 in Delhi, 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 Adelaide and Delhi use?

Adelaide uses Australia/Adelaide, currently UTC+9:30 (ACST), and Delhi uses Asia/Kolkata, currently UTC+5:30 (IST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Adelaide time to Delhi time

Right now Delhi runs 4 hours behind Adelaide. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

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

Every hour of a day in Adelaide, and what the clock reads in Delhi at that same moment.

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

Daylight saving time

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

Adelaide

Observes daylight saving time

Standard: UTC+9:30
Daylight: UTC+10:30
Next change: 2026-10-04 +60m

Delhi

Does not observe daylight saving time

Standard: UTC+5:30

When you can actually talk

The window is 5 hours wide — 13:00–18:00 in Adelaide, 09:00–14:00 in Delhi.

Adelaide 13:00–18:00Delhi 09:00–14:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Adelaide	Delhi
IANA zone	Australia/Adelaide	Asia/Kolkata
Abbreviation	ACST	IST
Standard offset	UTC+9:30	UTC+5:30
Daylight offset	UTC+10:30	—
Clock changes this year	2	0
Country	Australia	India

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

Common questions

What is the time difference between Adelaide and Delhi?: Delhi is 4 hours behind Adelaide. 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 Delhi from Adelaide?: Between 13:00–18:00 in Adelaide, which is 09:00–14:00 in Delhi. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Adelaide observe daylight saving time?: Yes. Adelaide runs on UTC+9:30 in winter and UTC+10:30 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.
Does Delhi observe daylight saving time?: No. Delhi stays on UTC+5:30 all year, so its clocks never move.
If it is midday in Adelaide, what time is it in Delhi?: It is 08:00 in Delhi, 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 Adelaide and Delhi use?: Adelaide uses Australia/Adelaide, currently UTC+9:30 (ACST), and Delhi uses Asia/Kolkata, currently UTC+5:30 (IST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.