What time zone does Japan use?

Japan uses Japan Standard Time (JST), which is UTC+9. There is only one time zone across the entire country — from Hokkaido in the north to Okinawa in the south, every region shares the same offset.

Does Japan observe daylight saving time?

No. Japan abolished daylight saving time in 1951 and has not observed it since. JST remains at UTC+9 year-round, which means the time difference between Japan and countries that do observe DST changes by one hour in spring and autumn.

What is JST in relation to UTC?

JST is UTC+9, meaning Japan is 9 hours ahead of Coordinated Universal Time. For example, when it is 00:00 UTC (midnight), it is 09:00 JST the same day.

What is the time difference between Japan and the US?

The difference depends on the US time zone and whether DST is in effect. During US Eastern Standard Time (EST, UTC-5), Japan is 14 hours ahead. During EDT (UTC-4), Japan is 13 hours ahead. For US Pacific time: 17 hours ahead (PST) or 16 hours ahead (PDT).

What is the time difference between Japan and the UK?

Japan is 9 hours ahead of GMT (UTC+0) in winter, and 8 hours ahead of BST (UTC+1) in summer when the UK observes daylight saving time.

Is this converter accurate for the current date?

Yes. The tool uses the Intl.DateTimeFormat API with official IANA time zone identifiers, so daylight saving time rules for the selected target zone are applied automatically based on today's date.

Japan Time Zones Overview

Name: Japan Time Zones Overview
Availability: InStock
Author: Nham Vu

See the live Japan Standard Time (JST) clock and instantly convert it to any world time zone.

Japan Standard Time • JST • UTC+9 • No DST

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Live world clocks compared to JST. Click any card to use it as the converter target.

JST Time Converter

Japan Time (JST) to Convert

Convert To

Japan Time Zone Facts

Time zone name JST

UTC offset UTC+9 (fixed)

Daylight saving None

IANA identifier Asia/Tokyo

Number of zones 1 (whole country)

Summary

See the live Japan Standard Time (JST) clock and instantly convert it to any world time zone.

How it works

The page loads and immediately shows the live Japan Standard Time (JST) clock.
The clock updates every second using the browser's built-in Intl.DateTimeFormat API with the Asia/Tokyo time zone.
Select any world region in the converter panel to see the equivalent time right now.
Or enter a custom JST time and select a target zone, then click Convert.
The result shows the converted time, the UTC offset difference, and whether the day shifts.
All calculations run entirely in your browser — no server requests are made.

Use cases

Check what time it is in Japan before calling a business partner in Tokyo.
Schedule a video call between Japan and New York, London, or Sydney.
Find out what time a Japanese live stream or sports event airs in your local time.
Plan flight itineraries and calculate arrival times from JST to your home zone.
Understand the time difference between Japan and your country for remote work.
Confirm that Japan does not observe daylight saving time when planning seasonal travel.
Convert a JST deadline to your local time zone before submitting a project.
Quickly compare Japan time with multiple cities around the world at once.

Frequently Asked Questions

Last updated: 2026-06-10 · Reviewed by Nham Vu