Do I need to change my phone and computer manually?

No. Any device that syncs its time over the internet updates itself. Car clocks, ovens, microwaves and older wall clocks usually need doing by hand.

Daylight Saving Time in Japan 2027

Q: Do the clocks change in Japan in 2027?

No. Japan does not observe Daylight Saving Time, so the clocks do not change at any point in 2027.

Q: Which way do the clocks go?

The usual mnemonic is "spring forward, fall back": clocks go forward one hour in spring and back one hour in autumn.

2027 schedule

Daylight Saving Time transitions in Japan during 2027
Change	Date	Local time	What happens
No clock changes in 2027. Japan does not observe Daylight Saving Time.

Japan stays on JST for the whole year.

Time until the next change

Current local time:

Getting ready

Update your car clock, microwave, and other manual clocks that don't auto-update.
Gradually adjust your sleep schedule a few days before the time change to minimize disruption.
Be extra cautious driving the Monday after the spring time change - accident rates increase.
Take advantage of the 'extra' hour in fall to catch up on sleep or tackle a project.

Frequently asked questions

When do the clocks change in Japan in 2027?

They do not. Japan does not observe Daylight Saving Time.

Which way do the clocks go?

"Spring forward, fall back" is the usual mnemonic: forward one hour in spring, back one hour in autumn.

Do I have to change anything myself?

Phones, computers and anything that syncs over the internet update on their own. Car clocks, ovens, microwaves and older wall clocks generally do not.

Is Daylight Saving Time being scrapped?

It has been proposed in many places and adopted in few. The European Parliament voted in 2019 to end mandatory clock changes and the change has stalled; in the United States the Sunshine Protection Act has repeatedly passed the Senate without becoming law. Most of the world that changes its clocks is still changing them.