digifyworld
🇯🇵
Practical Country Info

Japan Practical Country Info

TokyoJST

Time · driving · electricity · communications · codes

Japan uses one civil time zone, drives on the left, and has a 100 V electrical system with 50 Hz power in eastern regions and 60 Hz in western regions. The reference below also covers calling and domain codes, ISO identifiers, measurement standards.

Time zone
UTC+09:00
Asia/Tokyo
Driving side
Left side
National road rule
Mains voltage
100 V
50 Hz east, 60 Hz west
Calling code
+81
ITU country code
ccTLD
.jp
IANA delegated domain
Civil time

Japan time right now

Live clock

Asia/Tokyo · current local civil time
Loading...
IANA zoneAsia/Tokyo
UTC relationshipUTC+09:00
Daylight Saving TimeNot currently observed

One civil time zone

Japan Standard Time is represented by Asia/Tokyo

Japan Standard Time is nine hours ahead of UTC. The IANA Time Zone Database represents Japan with the identifier Asia/Tokyo, and Japan does not currently observe daylight saving time.

Road standard

Driving side

Left side traffic

Vehicles drive on the left
↑Forward trafficDriver position shown on the right

Reference rule

Japan National Police Agency

Japan's road system uses left side traffic. In most vehicles, the steering wheel and driver position are on the right side of the vehicle.

Road sideLeft
Typical driver positionRight side of vehicle
Authority usedNational Police Agency
Electrical system

100 V, with two grid frequencies

Voltage and frequency

100 Vnominal mains voltage
50 / 60 Hzregional frequencies
Eastern Japan50 Hz
Western Japan60 Hz

Japan's national electricity regulator documents the split directly: eastern Japan uses 50 Hz and western Japan uses 60 Hz. The national grid links the two frequency regions through conversion capacity.

Plug and socket types

Type A is the standard and most common outlet format. Grounded Type B outlets are also used in Japan.
Type A (2-pin)
SocketPlug
Two flat parallel pins. This is the standard plug format commonly encountered in Japan.
Type B (3-pin)
Socket Plug
Two flat parallel blades plus a round grounding pin. Grounded Type B outlets are also used in Japan.
Communications and identifiers

How Japan is identified internationally

+81

Calling code

Japan's E.164 country calling code in the ITU numbering system.

.jp

Country domain

The .jp country-code top-level domain is delegated in the IANA root zone.

JP

ISO 3166

Japan's ISO country identifiers.

Alpha 2JP
Alpha 3JPN
Numeric392
Structured reference

Japan practical data table

FieldJapanAuthority / basis
IANA time zoneAsia/TokyoIANA Time Zone Database
Current UTC relationshipUTC+09:00IANA tzdb, derived for current rules
Daylight Saving TimeNot currently observedIANA tzdb, computed from current zone rules
Driving sideLeft sideJapan National Police Agency
Typical steering positionRight side of vehicleHokkaido Regional Development Bureau / MLIT driving guide
Nominal mains voltage100 VJapan National Tourism Organization / METI references
Commercial frequency50 Hz / 60 HzCited electrical reference
Plug / socket typesType A and Type BJNTO / Kagawa University, JIS 8303 reference
Calling code+81ITU
ccTLD.jpIANA Root Zone Database
ISO 3166 alpha-2JPISO
ISO 3166 alpha-3JPNISO
ISO 3166 numeric392ISO
Measurement frameworkSI based legal unitsMETI Measurement Act framework

More about Japan

Explore Japan across the other DigifyWorld country-data sections.

Public HolidaysPublic holidays 2026 and 2027→Digital AdoptionInternet, payments and digital government→Population & DemographicsPopulation, age structure and projections→Economy SnapshotGDP, trade and economic structure→Currency & ExchangeYen, exchange rates and money→LanguagesJapanese, scripts and language context→Human DevelopmentHDI and quality-of-life indicators→Geography & EnvironmentLand, climate and environment→EducationSchool system and education data→

Sources & methodology

The source cards below document Japan's cited practical-data fields, including calling code +81, ccTLD .jp, time-zone reference Asia/Tokyo, and identify the authority used for each claim.

View sources used for this page
IANA Time Zone Database

Time zone identifier, UTC relationship and daylight saving rule basis.

Hokkaido Regional Development Bureau Driving Guide

Government driving guidance confirming that vehicles keep left in Japan and that steering wheels are generally on the right side of the vehicle.

ITU National Numbering Plans

International calling code +81.

IANA .JP Domain Delegation Data

Delegation record for Japan's .jp country-code top-level domain.

ISO: How ISO Codes Connect the World

Japan identifiers JP, JPN and 392.

METI Legal Measurement Units

Japan's legal measurement framework, based principally on SI units with defined exceptions.

METI Electricity and Gas Market Surveillance Commission

Official confirmation that eastern Japan uses 50 Hz and western Japan uses 60 Hz.

METI Electricity and Gas Market Surveillance Commission

National power-grid reference showing western Japan at 60 Hz, eastern Japan at 50 Hz, and the frequency-conversion boundary.

Japan National Tourism Organization: Plugs and Electricity

Official visitor reference confirming 100 V, the regional 50/60 Hz split, and Type A as the standard outlet format.

Kagawa University: Voltage and Frequency

Japanese institutional reference showing both Type A and grounded Type B outlets under JIS 8303, with Type A noted as more common.