What is the time difference between Tokyo and Athens?

Tokyo (JST, UTC+9) is 6 hours ahead of Athens during Greek summer (EEST, UTC+3) and 7 hours ahead during Greek winter (EET, UTC+2). Greece observes Daylight Saving Time; Japan does not.

Does Tokyo observe Daylight Saving Time?

No. Japan abolished Daylight Saving Time in 1952 and has not used it since. Tokyo stays on JST (UTC+9) year-round.

When does Athens change its clocks?

Greece moves clocks forward one hour on the last Sunday of March (switching to EEST, UTC+3) and back on the last Sunday of October (switching to EET, UTC+2). These are the standard EU DST rules.

What are the best meeting times for Tokyo and Athens?

Tokyo business hours 09:00–18:00 JST correspond roughly to 02:00–11:00 EET (winter) or 03:00–12:00 EEST (summer) in Athens. The usable overlap is late afternoon Tokyo / morning Athens — around 15:00–18:00 Tokyo maps to 08:00–11:00 Athens in winter or 09:00–12:00 in summer.

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. The Athens DST offset is computed automatically from live browser data.

What does EET stand for?

EET stands for Eastern European Time (UTC+2), used by Greece in winter. During summer, Greece uses EEST (Eastern European Summer Time, UTC+3).

Time Difference: Tokyo to Athens

See the current time in Tokyo (JST, UTC+9) and Athens (EET UTC+2 / EEST UTC+3) side by side, with a live offset and a built-in time converter.

Tokyo, Japan

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JST UTC+9

Athens, Greece

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EET UTC+2

Current Offset

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Tokyo is ahead of Athens — offset changes with Greek DST

Convert a Specific Time

Enter a Tokyo time to see the Athens equivalent, or vice versa

Tokyo Time (JST)

Enter any JST time

Athens Time (EET)

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Equivalent Athens time

Athens Time (EET)

Enter any Athens time

Tokyo Time (JST)

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Equivalent JST time

Meeting Overlap Finder

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

Tokyo (JST)	Athens (EET)	Status

Quick Reference: Tokyo to Athens

Common JST hours and their Athens equivalents

Tokyo (JST)	Athens (EET)

Summary

Tokyo runs on JST (Japan Standard Time, UTC+9) year-round with no Daylight Saving Time. Athens runs on EET (Eastern European Time, UTC+2) in winter and EEST (Eastern European Summer Time, UTC+3) when Greece observes DST, typically from the last Sunday of March to the last Sunday of October. That means Tokyo is 6 hours ahead of Athens in summer and 7 hours ahead in winter. Use this tool to schedule calls between Japan and Greece, coordinate remote teams, or plan travel between the two cities.

How it works

Your browser reads the current moment from your device clock.
It converts that moment to Asia/Tokyo time (JST, UTC+9) using the IANA timezone database built into modern browsers.
The same moment is converted to Europe/Athens time (EET UTC+2 in winter, EEST UTC+3 in summer).
The UTC offsets of both cities are compared: the tool calculates the live offset (6 or 7 hours depending on DST).
Both clocks and the offset refresh every second in real time.
The converter lets you enter any Tokyo time and instantly see the Athens equivalent, accounting for the current DST state.

Use cases

Scheduling video calls between Tokyo and Athens offices.
Checking if a colleague in Athens is still at their desk when working from Tokyo.
Planning Japan-Greece travel and comparing arrival or departure times.
Remote teams coordinating daily standups across Japan and Greece.
Finding overlapping business hours for Tokyo-Athens meetings.
Students and teachers arranging online lessons between Japan and Greece.
Converting a specific meeting time from JST to EET/EEST before sending a calendar invite.
Checking whether Athens has switched to summer or winter time when scheduling international events.

Frequently Asked Questions

Last updated: 2026-06-15 · Reviewed by Nham Vu