What is the time difference between Delhi and Kathmandu?

Kathmandu is 15 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 Kathmandu from Delhi?

Between 09:00–17:45 in Delhi, which is 09:15–18:00 in Kathmandu. 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 Kathmandu observe daylight saving time?

No. Kathmandu stays on UTC+5:45 all year, so its clocks never move.

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

It is 12:15 in Kathmandu, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.

Which time zones do Delhi and Kathmandu use?

Delhi uses Asia/Kolkata, currently UTC+5:30 (IST), and Kathmandu uses Asia/Kathmandu, currently UTC+5:45. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Delhi time to Kathmandu time

Right now Kathmandu runs 15 minutes ahead of Delhi. 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 Delhi, and what the clock reads in Kathmandu at that same moment.

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

Daylight saving time

Neither Delhi nor Kathmandu changes its clocks, so the difference between them is the same every day of the year.

Delhi

Does not observe daylight saving time

Standard: UTC+5:30

Kathmandu

Does not observe daylight saving time

Standard: UTC+5:45

When you can actually talk

The window is 8 hours 45 minutes wide — 09:00–17:45 in Delhi, 09:15–18:00 in Kathmandu.

Delhi 09:00–17:45Kathmandu 09:15–18:00

Reference

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

	Delhi	Kathmandu
IANA zone	Asia/Kolkata	Asia/Kathmandu
Abbreviation	IST	UTC+5:45
Standard offset	UTC+5:30	UTC+5:45
Daylight offset	—	—
Clock changes this year	0	0
Country	India	Nepal

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

Common questions

What is the time difference between Delhi and Kathmandu?: Kathmandu is 15 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 Kathmandu from Delhi?: Between 09:00–17:45 in Delhi, which is 09:15–18:00 in Kathmandu. 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 Kathmandu observe daylight saving time?: No. Kathmandu stays on UTC+5:45 all year, so its clocks never move.
If it is midday in Delhi, what time is it in Kathmandu?: It is 12:15 in Kathmandu, on the same calendar date. That holds for the current offsets; it does not change through the year, because neither city moves its clocks.
Which time zones do Delhi and Kathmandu use?: Delhi uses Asia/Kolkata, currently UTC+5:30 (IST), and Kathmandu uses Asia/Kathmandu, currently UTC+5:45. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.