Japan Standard Time (Tokyo)
JST is UTC+09:00 from UTC. IANA name: Asia/Tokyo. Covers Tokyo, Yokohama, Osaka and more.
IANA Identifier
Offset Details
Major Cities
About Japan Standard Time (Tokyo)
Japan Standard Time (JST) is UTC+9 year-round. Japan does not observe daylight saving time and has not done so since the end of the American occupation in 1952, when the practice was abolished due to public opposition. Tokyo, the capital, anchors the world's most populous metropolitan area with over 37 million people in the Greater Tokyo Area. JST is critically important for global financial markets — the Tokyo Stock Exchange (TSE) is the largest in Asia by market capitalization and the third-largest globally. When Tokyo markets open at 9:00 AM JST, it is still the previous business day in the Americas and early morning in Europe, creating a rolling wave of global trading activity. Japan's timezone is shared with South Korea and parts of Indonesia. The country's manufacturing giants — Toyota, Sony, Nintendo, Honda, Panasonic — coordinate global supply chains from JST. Japan's railway system, famous for its punctuality (the Shinkansen's average delay is under one minute), epitomizes the culture's precision with time. Japanese culture has distinctive time concepts like 'ma' (the interval between events) that reflect a deep philosophical relationship with time.
Technical Details
| Display Name | Japan Standard Time (Tokyo) |
| IANA Identifier | Asia/Tokyo |
| Abbreviation | JST |
| Standard Offset | UTC+09:00 |
| DST Offset | N/A |
| Observes DST | No |
| Region | Asia |
| Major Cities | Tokyo, Yokohama, Osaka, Nagoya, Sapporo, Kobe, Fukuoka |