What is the time difference between Kathmandu and Tokyo?

Tokyo is 3 hours 15 minutes ahead of Kathmandu. 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 Tokyo from Kathmandu?

Between 09:00–14:45 in Kathmandu, which is 12:15–18:00 in Tokyo. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Kathmandu observe daylight saving time?

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

Does Tokyo observe daylight saving time?

No. Tokyo stays on UTC+9 all year, so its clocks never move.

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

It is 15:15 in Tokyo, 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 Kathmandu and Tokyo use?

Kathmandu uses Asia/Kathmandu, currently UTC+5:45, and Tokyo uses Asia/Tokyo, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Kathmandu time to Tokyo time

Right now Tokyo runs 3 hours 15 minutes ahead of Kathmandu. That gap is not fixed: it moves when either city changes its clocks.

Convert a time

From

Date

Time

Converted time

—

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 Kathmandu, across for Tokyo.

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

Daylight saving time

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

Kathmandu

Does not observe daylight saving time

Standard: UTC+5:45

Tokyo

Does not observe daylight saving time

Standard: UTC+9

When you can actually talk

You have 5 hours 45 minutes of shared working time: 09:00–14:45 in Kathmandu, which is 12:15–18:00 in Tokyo.

Kathmandu 09:00–14:45Tokyo 12:15–18:00

Reference

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

	Kathmandu	Tokyo
IANA zone	Asia/Kathmandu	Asia/Tokyo
Abbreviation	UTC+5:45	UTC+9
Standard offset	UTC+5:45	UTC+9
Daylight offset	—	—
Clock changes this year	0	0
Country	Nepal	Japan

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

Common questions

What is the time difference between Kathmandu and Tokyo?: Tokyo is 3 hours 15 minutes ahead of Kathmandu. 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 Tokyo from Kathmandu?: Between 09:00–14:45 in Kathmandu, which is 12:15–18:00 in Tokyo. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Kathmandu observe daylight saving time?: No. Kathmandu stays on UTC+5:45 all year, so its clocks never move.
Does Tokyo observe daylight saving time?: No. Tokyo stays on UTC+9 all year, so its clocks never move.
If it is midday in Kathmandu, what time is it in Tokyo?: It is 15:15 in Tokyo, 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 Kathmandu and Tokyo use?: Kathmandu uses Asia/Kathmandu, currently UTC+5:45, and Tokyo uses Asia/Tokyo, currently UTC+9. Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.