CST to JST converter
Central Time (CST) is typically 15 hours behind Japan Standard Time (JST).
Central Time → Japan Standard Time, hour by hour below.
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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.
Time difference between Central Time and Japan Standard Time
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. Put the other way around: japan Standard Time (JST) is typically 15 hours ahead of Central Time (CST). The table above shows the difference hour by hour using today's actual offsets.
Best time to call Japan Standard Time from Central Time
There's no 9-to-5 overlap between Central Time and Japan Standard Time, so 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.
CST to JST, hour by hour
Today's actual offsets. Rows where both zones are inside 9am–5pm working hours are highlighted.