JST to CST converter

Japan Standard Time (JST) is UTC+9 with no daylight saving. It covers Tokyo, Osaka and Sapporo (Seoul shares the same clock).

Central Time (CST) is UTC−6 and observes daylight saving (CDT, UTC−5, roughly March–November). It covers Chicago, Dallas, Houston and Minneapolis.

Central Time is typically 15 hours behind Japan Standard Time, though daylight saving can shift the difference by an hour at some times of year.

Best time to call Central Time from Japan Standard Time

There's no 9-to-5 overlap between Japan Standard Time and Central Time — one side always has to flex. The practical slots: 7:00 AM in Japan Standard Time is 4:00 PM in Central Time. Daylight saving can shift these times by an hour at some points in the year.