What is the time difference between Tokyo and Mexico City?

Tokyo (JST, UTC+9) is always 15 hours ahead of Mexico City (CST, UTC−6). Neither city observes daylight saving time — Japan never has, and Mexico abolished DST in 2023 — so the offset is a fixed 15 hours all year.

Does Tokyo observe daylight saving time?

No. Japan abolished DST in 1951 and has not used it since. Tokyo stays on JST (UTC+9) all year, and Mexico City also keeps a fixed offset, so the gap remains 15 hours.

When does Mexico City change its clocks?

Since 2023, Mexico City no longer observes DST. Mexico abolished daylight saving time via federal law effective 2023; clocks stay on CST (UTC−6) year-round, so the offset with Tokyo is a constant 15 hours.

What are good meeting times for both Tokyo and Mexico City?

The overlap between Tokyo business hours (09:00–18:00 JST) and Mexico City business hours (09:00–18:00 CST) is very limited. When Mexico City is in CST (UTC−6), 09:00 Mexico City time is 00:00 Tokyo time the next day. The best practical window is early morning in Mexico City (08:00–09:00) which corresponds to late evening in Tokyo (23:00–00:00), or arrange an evening call in Mexico City.

Is this tool accurate for scheduling?

Yes. It uses the IANA timezone database embedded in your browser — the same source used by operating systems and calendar apps worldwide. Accuracy depends on your device clock being synchronized via NTP, which most devices do automatically.

Does the offset ever change during the year?

No. The Tokyo–Mexico City offset is a fixed 15 hours (UTC+9 minus UTC−6). Tokyo stays on JST year-round and Mexico City stays on CST year-round since Mexico abolished DST in 2023, so the gap never shifts.

Time Difference: Tokyo to Mexico City

See the current time in Tokyo and Mexico City side by side, with the exact hour offset and a meeting planner, updated live every second.

Tokyo, Japan

--:--:--

JST UTC+9

Mexico City, Mexico

--:--:--

CST UTC-6

Current Offset

+15 hours

Tokyo is 15 hours ahead of Mexico City

Meeting Overlap Finder

Business hours (09:00–18:00) highlighted — best overlap shaded

Mexico City	Tokyo	Status

Convert Mexico City Time to Tokyo Time

Based on the current offset — updates automatically

Mexico City	Tokyo

Summary

This tool displays the live current time in both Tokyo (Asia/Tokyo — JST, UTC+9, no daylight saving) and Mexico City (America/Mexico_City — CST, UTC−6) side by side. Mexico abolished daylight saving time in 2023, so Mexico City stays on CST year-round and Tokyo is always exactly 15 hours ahead. The exact offset is calculated automatically from your browser's IANA timezone database and refreshes every second.

How it works

Your browser reads the current moment from your device clock.
It converts that moment to Asia/Tokyo time using the IANA timezone database built into modern browsers.
The same moment is converted to America/Mexico_City time.
The UTC offsets of both cities are compared to calculate the exact hour difference.
All three values — Tokyo time, Mexico City time, and the offset — refresh every second.
Both cities stay on fixed offsets year-round (Tokyo UTC+9, Mexico City UTC−6), so the gap is a constant 15 hours.

Use cases

Scheduling video calls between Tokyo and Mexico City offices.
Checking whether a colleague in Mexico City is still at their desk.
Planning travel between Japan and Mexico.
Remote teams coordinating standups across the Pacific.
Finding overlapping business hours for Tokyo–Mexico City meetings.
Verifying the current timezone abbreviation for each city.
Journalists checking broadcast times for live events in both regions.
Students and teachers arranging online lessons across the Pacific.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu