What is the time difference between Delhi and Oslo?

Oslo is 3 hours 30 minutes behind 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 Oslo from Delhi?

Between 12:30–18:00 in Delhi, which is 09:00–14:30 in Oslo. 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 Oslo observe daylight saving time?

Yes. Oslo runs on UTC+1 in winter and UTC+2 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

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

It is 08:30 in Oslo, 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 Oslo use?

Delhi uses Asia/Kolkata, currently UTC+5:30 (IST), and Oslo uses Europe/Oslo, currently UTC+2 (CEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Delhi time to Oslo time

Oslo is 3 hours 30 minutes behind Delhi right now, so midday in Delhi lands in the morning in Oslo.

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

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

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

Daylight saving time

Oslo 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

Oslo

Observes daylight saving time

Standard: UTC+1
Daylight: UTC+2
Next change: 2026-10-25 −60m

When you can actually talk

You have 5 hours 30 minutes of shared working time: 12:30–18:00 in Delhi, which is 09:00–14:30 in Oslo.

Delhi 12:30–18:00Oslo 09:00–14:30

Reference

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

	Delhi	Oslo
IANA zone	Asia/Kolkata	Europe/Oslo
Abbreviation	IST	CEST
Standard offset	UTC+5:30	UTC+1
Daylight offset	—	UTC+2
Clock changes this year	0	2
Country	India	Norway

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

Common questions

What is the time difference between Delhi and Oslo?: Oslo is 3 hours 30 minutes behind 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 Oslo from Delhi?: Between 12:30–18:00 in Delhi, which is 09:00–14:30 in Oslo. 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 Oslo observe daylight saving time?: Yes. Oslo runs on UTC+1 in winter and UTC+2 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
If it is midday in Delhi, what time is it in Oslo?: It is 08:30 in Oslo, 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 Oslo use?: Delhi uses Asia/Kolkata, currently UTC+5:30 (IST), and Oslo uses Europe/Oslo, currently UTC+2 (CEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.