What is the time difference between Tokyo and Mumbai?

Mumbai is 3 hours 30 minutes behind Tokyo. 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 Mumbai from Tokyo?

Between 12:30–18:00 in Tokyo, which is 09:00–14:30 in Mumbai. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Tokyo observe daylight saving time?

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

Does Mumbai observe daylight saving time?

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

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

It is 08:30 in Mumbai, 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 Tokyo and Mumbai use?

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

Convert Tokyo time to Mumbai time

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

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 Tokyo, across for Mumbai.

Tokyo	Mumbai
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

Both cities keep one offset all year. Whatever difference holds today still holds in six months.

Tokyo

Does not observe daylight saving time

Standard: UTC+9

Mumbai

Does not observe daylight saving time

Standard: UTC+5:30

When you can actually talk

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

Tokyo 12:30–18:00Mumbai 09:00–14:30

Reference

The zone identifiers and offsets behind everything above.

	Tokyo	Mumbai
IANA zone	Asia/Tokyo	Asia/Kolkata
Abbreviation	UTC+9	IST
Standard offset	UTC+9	UTC+5:30
Daylight offset	—	—
Clock changes this year	0	0
Country	Japan	India

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

Common questions

What is the time difference between Tokyo and Mumbai?: Mumbai is 3 hours 30 minutes behind Tokyo. 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 Mumbai from Tokyo?: Between 12:30–18:00 in Tokyo, which is 09:00–14:30 in Mumbai. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Tokyo observe daylight saving time?: No. Tokyo stays on UTC+9 all year, so its clocks never move.
Does Mumbai observe daylight saving time?: No. Mumbai stays on UTC+5:30 all year, so its clocks never move.
If it is midday in Tokyo, what time is it in Mumbai?: It is 08:30 in Mumbai, 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 Tokyo and Mumbai use?: Tokyo uses Asia/Tokyo, currently UTC+9, and Mumbai uses Asia/Kolkata, currently UTC+5:30 (IST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.