CST to JST converter

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

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

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

Best time to call Japan Standard Time from Central Time

There's no 9-to-5 overlap between Central Time and Japan Standard Time — one side always has to flex. The practical slots: 7:00 PM in Central Time is 10:00 AM in Japan Standard Time. Daylight saving can shift these times by an hour at some points in the year.