JST, or Japan Standard Time, is the time zone used in Japan. It is 9 hours ahead of Coordinated Universal Time (UTC+9) and does not observe Daylight Saving Time. This means that the time remains consistent throughout the year, making it easier for scheduling and planning. JST is important for various activities, including business operations and international communication. For example, when coordinating with countries in different time zones, understanding JST helps ensure timely meetings and events. Major cities like Tokyo and Osaka operate on JST, making it the standard time across the entire country.