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Japan • Live Time Zone Guide

Japan Time Zone

Japan uses one time zone nationwide: Japan Standard Time (JST), UTC+09:00. Japan does not observe daylight saving time, so the UTC offset stays fixed all year. Tokyo, Osaka, Kyoto, Sapporo, Fukuoka, Hiroshima, Okinawa and Japan's inhabited remote islands all keep the same civil clock.

Japan time zone = JST = UTC+09:00, year-round. For software, calendars and date-aware conversions, use the IANA identifier Asia/Tokyo. Japan's own clock does not move seasonally; changing time differences with New York, London or Sydney happen because those places may change their clocks.
Time zones1 nationwideJapan Standard Time
UTC offsetUTC+09:00Fixed all year
IANA zoneAsia/TokyoNo current DST
See Japan's Time Zone Time Zone Converter Japan on the Asia Time Zone Map
Search a Japan location, JST, UTC offset, DST question or related time-zone reference.
Popular: JST Time Now Time in Japan Time in Tokyo Time in Okinawa Asia Time Zone Map UTC Offsets

Japan Time Zone at a Glance

Japan's current civil-time system is unusually simple: one nationwide standard, one fixed UTC offset and no seasonal clock changes.

JST

Japan Standard Time

See the nationwide UTC+09:00 rule shared by every modern Japanese city and prefecture.

See JST details → IANA

Asia/Tokyo

Learn why a location-based IANA identifier is better for software than hardcoding the letters JST.

See the IANA zone → DST

No Daylight Saving Time

Japan does not change clocks in 2026 and has not observed DST since its final 1951 transition.

See DST history → 1×

One Clock Across Japan

Compare Tokyo, Osaka, Kyoto, Hokkaido and Okinawa and see the same JST time live.

See city examples → ⇄

Japan vs World

See why Japan's gap with New York and London changes even though JST itself never moves.

Compare live times → ↔

Japan Time Converter

Convert JST to another city or time zone for any date and account for DST at the other location.

Open converter →

Japan's Nationwide Time Zone

Modern Japan uses the same civil clock across the entire country. There is no mainland-versus-island offset difference and no seasonal clock change.

Open the JST live reference →
Time ZoneAbbreviationUTC OffsetIANA ZoneDaylight Saving
Japan Standard TimeJSTUTC+09:00Asia/TokyoNot observed
See Cities Across Japan Explore UTC+09:00 JST Time Now

Japan Time Zone Locations

From Hokkaido to Okinawa, Japan's major population centers and island regions all use the same modern JST clock.

KantōTokyoAsia/Tokyo · JST · UTC+09:00→ KansaiOsakaSame JST clock as Tokyo.→ KansaiKyotoSame JST clock as Tokyo.→ HokkaidoSapporoJST · UTC+09:00 year-round.→ KyushuFukuokaJST · UTC+09:00 year-round.→ Ryukyu IslandsOkinawaNo current time difference from Tokyo.→ Country ClockCurrent Time in JapanLive nationwide current-time reference.→ Visual GeographyAsia Time Zone MapSee Japan's UTC+09:00 position in Asia.→

Major Japan Locations — Same Time Zone

These live rows demonstrate the nationwide rule. Geographic distance does not create separate modern civil time zones inside Japan.

See current time in Japan →
LocationRegionIANA ZoneCurrent TimeAbbreviationUTC Offset
TokyoKantōAsia/TokyoLive——
OsakaKansaiAsia/TokyoLive——
KyotoKansaiAsia/TokyoLive——
SapporoHokkaidoAsia/TokyoLive——
SendaiTōhokuAsia/TokyoLive——
NagoyaChūbuAsia/TokyoLive——
HiroshimaChūgokuAsia/TokyoLive——
FukuokaKyushuAsia/TokyoLive——
Naha / OkinawaOkinawaAsia/TokyoLive——

Modern scheduling rule: if a meeting is at 9:00 AM in Tokyo, it is also 9:00 AM in Osaka, Kyoto, Sapporo, Fukuoka and Okinawa.

Fixed Offset · No Clock Changes

Japan Is UTC+09:00 All Year

The National Institute of Information and Communications Technology (NICT) maintains Japan Standard Time as nine hours ahead of UTC. Unlike countries that switch between standard and daylight time, Japan's modern civil offset remains UTC+09:00 every day of the year.

JST Time Now UTC Offsets Japan DST History Time Zone Converter
TokyoLive timeJST · loading offset
OsakaLive timeJST · loading offset
SapporoLive timeJST · loading offset
OkinawaLive timeJST · loading offset

Japan Time Difference from Major World Locations

Japan never changes its clock, but the gap to a DST-observing country can change during the year. These are the recurring relationships that matter most for travel, calls and business scheduling.

Convert a specific date and time →
LocationIts Time ZoneJapan DifferenceWhy It Can Change
New YorkEST / EDTJapan +14h on EST; +13h on EDTNew York observes DST; Japan does not.
LondonGMT / BSTJapan +9h on GMT; +8h on BSTLondon changes between GMT and BST.
ChinaUTC+08:00 national standardJapan +1hBoth current national standards are fixed year-round.
SingaporeUTC+08:00Japan +1hNeither location currently observes DST.
South KoreaKST · UTC+09:00Same timeBoth countries currently use UTC+09:00 year-round.
SydneyAEST / AEDTUsually Sydney +1h or +2hMuch of eastern Australia changes clocks seasonally.
China Time Zone Singapore Time Zone Open Full Converter

Does Japan Observe Daylight Saving Time?

No. Japan uses JST, UTC+09:00, throughout 2026 and there are no scheduled clock changes. This makes the domestic rule simple, but international time differences can still shift when another country enters or leaves DST.

2026No spring-forward date. No fall-back date. JST remains UTC+09:00 all year.
Modern ruleJapan has not observed daylight saving time since 1951.
Scheduling implicationDo not add or subtract an hour from Japan itself. Instead, check whether the other location is on standard or daylight time.

Japan's Historical DST Period

Japan did use seasonal clock changes for a short postwar period. Historical time-zone data therefore should not be modeled by assuming UTC+09:00 for every date in the past.

1948Daylight saving time was introduced in May and ended in September.
1949–1951Seasonal clock changes continued for three more years.
September 8, 1951Japan's final DST period ended; standard time resumed and modern Japan has not returned to seasonal clock changes.

JST vs UTC vs Asia/Tokyo

These three labels describe related but different parts of Japan's time system.

JST

Japan Standard Time

The civil standard used nationwide in Japan. Its current offset is UTC+09:00 throughout the year.

UTC+09:00

The Fixed Current Offset

Japan is nine hours ahead of Coordinated Universal Time. NICT defines and realizes JST from UTC(NICT) plus nine hours.

IANA

Asia/Tokyo

The preferred location-based identifier for calendars, databases and applications that need Japan's date-aware civil-time history.

135° East

Japan's Standard Meridian

Japan's national standard time was established around the meridian at 135 degrees east longitude, corresponding to nine hours east of Greenwich.

No DST

One Offset All Year

There is no JST-versus-JDT seasonal pair in modern Japanese civil time. JST remains the active national standard year-round.

Nationwide

One Modern Civil Clock

Japan's prefectures do not maintain separate modern offsets. Hokkaido and Okinawa use the same clock as Tokyo.

Quick Japan Time Zone Compare

Compare Japan with another major time zone. Japan stays at UTC+09:00; the live difference changes automatically if the other location uses seasonal clock rules.

Live time
Current abbreviation and UTC offset
⇄
Live time
Current abbreviation and UTC offset
Open Full Converter

How Japan's Time Zone Works

Six rules explain nearly every modern Japan time-zone question.

01 · Nationwide

Japan Uses One Current Time Zone

No Japanese prefecture runs a separate modern civil offset. From Hokkaido to Okinawa, the clock is JST.

02 · Offset

JST Is UTC+09:00

Nine hours are added to UTC. The offset does not change between summer and winter.

03 · IANA

Use Asia/Tokyo for Software

A location-based zone can preserve historical rules and is safer than storing the text “JST” or a raw +09:00 offset alone.

04 · DST

Japan Does Not Change Clocks

Japan's last daylight-saving transition was in 1951. There is no current spring-forward or fall-back.

05 · World Differences

The Other Country May Move

Japan–New York and Japan–London differences vary because the U.S. and U.K. change clocks, not because Japan does.

06 · Standard Meridian

135° East Explains UTC+9

Japan's standard-time system traces to the 135° east meridian, which corresponds to nine hours east of Greenwich.

IANA Time Zone vs Japan Standard Time

JST is the abbreviation people use for Japan Standard Time. Asia/Tokyo is the IANA location identifier to use when an application must interpret actual dates. That distinction matters most for historical timestamps, because Japan's past included rules that do not match today's fixed UTC+09:00 pattern.

JST · Japan Standard Time live reference UTC+09:00 · Offset reference Asia/Tokyo · Tokyo current time Japan · Nationwide current time Date-aware Japan time conversion

Why Japan Is UTC+9

Japan's standard-time system dates to the Meiji era. NICT explains that Japanese standard time was legally tied to the local time at the 135th meridian east. Because Earth rotates 360 degrees in 24 hours, 135 degrees corresponds to nine hours east of Greenwich. Modern JST retains that nine-hour relationship using UTC rather than astronomical GMT as the international reference.

1886Japan's standard-time framework based on 135°E was legally established.
1888The national standard-time system went into use.
TodayNICT generates UTC(NICT) and realizes JST by adding nine hours.
Japan Standard Time Now Explore UTC Offsets
Visual Geography

See Japan on the Asia Time Zone Map

Japan's map-specific time-zone intent belongs on the broader Asia map. It shows the country's UTC+09:00 position relative to China and Singapore at UTC+08:00, South Korea at UTC+09:00 and neighboring Russian time zones.

Open Asia Time Zone Map World Time Zone Map
Japan · JST · UTC+09:00

Looking for the Current Time in Japan?

If your main question is what time it is in Japan right now, use the live country clock. For a city-specific current-time view, Tokyo, Okinawa, Osaka and Kyoto each have their own geographic clock page while sharing the same JST owner.

Country ClockCurrent Time in Japan CapitalCurrent Time in Tokyo OkinawaCurrent Time in Okinawa Dates & ObservancesJapan Holidays

Sources & Methodology

Japan's standard-time definition and UTC+09:00 relationship are based on Japan's National Institute of Information and Communications Technology (NICT), which generates and disseminates Japan Standard Time. Current and historical location rules are cross-checked against the IANA Time Zone Database. Historical DST dates are checked against established civil-time transition records.

NICT — Japan Standard Time NICT Japan Standard Time Group — Official Time Services IANA Time Zone Database — Current Civil-Time Rules Timeanddate — Japan Daylight Saving Time History

Last reviewed: August 21, 2026. IANA release 2026c is the current database release as of this review. Live values are generated from date-aware time-zone data rather than a manually fixed clock.

Japan Time Zone FAQ

What time zone is Japan in?

Japan uses Japan Standard Time (JST), UTC+09:00, throughout the country.

How many time zones does Japan have?

Japan has one current civil time zone nationwide. Tokyo, Osaka, Kyoto, Hokkaido, Okinawa and Japan's inhabited remote islands all use JST.

What is Japan's UTC offset?

Japan is UTC+09:00 all year. There is no seasonal UTC offset change.

Does Japan observe daylight saving time?

No. Japan does not observe DST in 2026 and has not used seasonal clock changes since 1951.

What is the IANA time zone for Japan?

Asia/Tokyo is the primary IANA identifier for modern civil time in Japan.

Is Okinawa the same time as Tokyo?

Yes. Okinawa uses JST, UTC+09:00, exactly like Tokyo.

Is Osaka the same time as Tokyo?

Yes. Osaka, Tokyo, Kyoto and every other modern Japanese location share the same nationwide time zone.

How far ahead is Japan from New York?

Japan is 14 hours ahead when New York is on EST and 13 hours ahead when New York is on EDT.

How far ahead is Japan from London?

Japan is 9 hours ahead when London is on GMT and 8 hours ahead when London is on BST.

Why does Japan use UTC+9?

Japan's standard-time system traces to the 135° east meridian, corresponding to nine hours east of Greenwich. Modern JST is maintained nine hours ahead of UTC.