JP — Japan

Japan is an East Asian island nation known for its unique blend of ancient tradition and cutting-edge technology. Tokyo, the capital, is the world's most populous metropolitan area. Japan is the world's third-largest economy and a global leader in technology, automotive, and electronics industries. The Japanese Yen (JPY) is a major international reserve currency with no subdivision — amounts are always whole numbers. For developers, the JP country code maps to the ja-JP locale for Japanese. The .jp domain is well-established, and +81 is the dialing code. Japanese text involves three scripts — Kanji, Hiragana, and Katakana — often mixed within a single sentence, requiring robust Unicode and font support. The ¥ symbol is shared with the Chinese Yuan (CNY), requiring disambiguation. Japan's era-based calendar system (currently Reiwa era) adds to date formatting complexity. Japanese names follow family-name-first order. Japanese postal codes (〒NNN-NNNN) have a specific format. Japan's massive digital market and unique technical requirements make ja-JP one of the most important Asian locales.