What is the time difference between Tokyo and Mexico City?

Mexico City is 15 hours 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 Mexico City from Tokyo?

There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.

Does Tokyo observe daylight saving time?

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

Does Mexico City observe daylight saving time?

No. Mexico City stays on UTC-6 all year, so its clocks never move.

If it is midday in Tokyo, what time is it in Mexico City?

It is 21:00 in Mexico City, still on the previous day. 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 Mexico City use?

Tokyo uses Asia/Tokyo, currently UTC+9, and Mexico City uses America/Mexico_City, currently UTC-6 (CST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Tokyo time to Mexico City time

Mexico City is 15 hours behind Tokyo right now, so midday in Tokyo lands in the evening in Mexico City.

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 Tokyo, across for Mexico City.

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

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

Mexico City

Does not observe daylight saving time

Standard: UTC-6

When you can actually talk

A standard working day in Tokyo and one in Mexico City do not overlap at all. Any call between them is early for one side or late for the other.

Tokyo 09:00–18:00Mexico City 18:00–03:00
Tokyo 00:00–09:00Mexico City 09:00–18:00

Reference

The zone identifiers and offsets behind everything above.

	Tokyo	Mexico City
IANA zone	Asia/Tokyo	America/Mexico_City
Abbreviation	UTC+9	CST
Standard offset	UTC+9	UTC-6
Daylight offset	—	—
Clock changes this year	0	0
Country	Japan	Mexico

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

Common questions

What is the time difference between Tokyo and Mexico City?: Mexico City is 15 hours 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 Mexico City from Tokyo?: There is no time inside normal working hours in both cities, so someone has to take the call outside them. The nearest workable windows are listed above — pick one and alternate who gets the awkward slot.
Does Tokyo observe daylight saving time?: No. Tokyo stays on UTC+9 all year, so its clocks never move.
Does Mexico City observe daylight saving time?: No. Mexico City stays on UTC-6 all year, so its clocks never move.
If it is midday in Tokyo, what time is it in Mexico City?: It is 21:00 in Mexico City, still on the previous day. 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 Mexico City use?: Tokyo uses Asia/Tokyo, currently UTC+9, and Mexico City uses America/Mexico_City, currently UTC-6 (CST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.