Flag of Japan and ja-JP

Locale Code: ja-JP

The locale code represents Japanese language in Japan.

See all locale codes


General information related to the locale code

Comprehensive ja-JP locale data for Japan
Country NameJapan
Country Name (Local)日本国
Country Flag🇯🇵
Country Area377930 km2
Country Code (ISO 3166-1)JP
Language NameJapanese
Language Name (Local)日本語 (にほんご)
Language Code (ISO 639-1)ja
RegionEastern Asia
Capital NameTokyo
Capital Latitude35.6895
Capital Longitude139.69171
Postal Code Format###-####
Postal Code Regex^(\d{7})$


The currency used for the locale code ja-JP is Japanese Yen.

Currency information for Japan and ja-JP locale
Currency NameJapanese Yen
Currency Name (Local)Japanese yen
Currency CodeJPY
Currency Symbol¥
Currency Numeric392
Currency Subunit Value100
Currency Subunit NameSen


Japan has one timezone with UTC offset UTC+09:00.



Japan is an island country and it's not landlocked.

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What is 'ja-JP' locale code?

Every locale code is a unique identifier for a specific language and country (or region). It is used in software development to localize applications and websites. Locale code is a combination of ISO 639-1 language code and ISO 3166-1 country code. For example, ja_JP is a locale code for Japanese language in Japan. Locale codes are used to define the language and country settings for date, time, currency, and number formatting. They are also used to translate user interfaces and messages in software applications. Locale codes are essential for building multilingual and internationalized software products. They are used in programming languages, frameworks, and libraries to provide internationalization and localization features. Locale codes are also used in databases, operating systems, and web browsers to provide language and country-specific settings. Locale codes are standardized by the International Organization for Standardization (ISO) and are widely used in software development.