EST to JST converter
Eastern Time → Japan Standard Time
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Eastern Time (EST) is UTC−5 and observes daylight saving (EDT, UTC−4, roughly March–November). It covers New York, Toronto, Miami and Atlanta.
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 14 hours ahead of Eastern Time, though daylight saving can shift the difference by an hour at some times of year.
Best time to call Japan Standard Time from Eastern Time
There's no 9-to-5 overlap between Eastern Time and Japan Standard Time — one side always has to flex. The practical slots: 8:00 PM in Eastern Time is 10:00 AM in Japan Standard Time. Daylight saving can shift these times by an hour at some points in the year.
EST to JST, hour by hour
Today's actual offsets. Rows where both zones are inside 9am–5pm working hours are highlighted.