Japan Standard Time (JST)
All of Japan operates under a single time zone called Japan Standard Time (JST), which is 9 hours ahead of UTC (UTC+9). Despite spanning a considerable stretch of islands, time unification facilitates the ultra-precise train schedules and the synchronized operation of the entire country.
No Daylight Saving Time
Unlike Western nations, Japan is one of the major developed countries that refuses to use Daylight Saving Time. After briefly testing it under Allied occupation following World War II, the practice was abolished in 1952. Its suppression aligns with Japan's culture of extreme punctuality, where changing all clocks would cause systemic disruptions.
Extreme Punctuality
In Tokyo, time is not just a number; it is a social obligation. Japan's bullet train systems (Shinkansen) have an average annual delay of less than 1 minute. If you wish to plan a trip or establish business communication with Japan, you must be mathematically exact with time differences.
Plan Your Communication
Because Tokyo does not adjust for daylight saving time, its time difference with Europe or America changes throughout the year. Verify this with the Compare Time tool before scheduling important meetings.