CET to JST

About Central European Time

Central European Time covers most of the continent, from Spain to Poland, at UTC+1 as CET and UTC+2 as CEST. Every EU country changes at the same instant — 01:00 UTC on the last Sunday of March and of October — rather than at 02:00 local like North America, so the whole bloc moves together and the steps between European zones never wobble.

Cities on this clock: Paris, Berlin, Madrid, Rome, Amsterdam, Brussels, Vienna, Warsaw.

About Japan Standard Time

Japan is a fixed UTC+9 and has had no daylight saving since 1951. It shares its clock with Korea exactly, so a schedule that works for Tokyo works unchanged for Seoul.

Cities on this clock: Tokyo, Osaka, Seoul.

How the difference is worked out

The gap between Central European Time and Japan Standard Time is not one number. The two zones change their clocks on different dates, so for part of the year the difference is 7 hours and for the rest it is something else — the table above lists each stretch of 2026 with the date it starts and which country's clocks moved.

With both zones on their own standard time — daylight saving not in force anywhere — Japan Standard Time is 8 hours ahead of Central European Time. That figure never changes; everything else on this page follows from it plus whichever clocks have moved.

Every figure here comes from the IANA time zone database via your browser's own Intl engine, using the zone ids Europe/Paris and Asia/Tokyo. Nothing is looked up on a server and nothing about your visit is recorded.