JST to EST Time Converter

Convert Japan Standard Time to Eastern Standard Time

JST
Japan Standard Time
UTC+9
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EST
Eastern Standard Time
UTC-5
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Quick Convert

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Full Conversion Table

JST to EST for every hour

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Understanding the JST to EST Time Difference

The standard difference between JST and EST is -14 hours. JST to EST spans a 14-hour gap, making Japan-US East Coast coordination particularly challenging. When it is 9 AM Monday in Tokyo, it is 7 PM Sunday in New York. This near-opposite schedule means real-time collaboration requires one side to work outside normal hours. Japanese companies with US operations often designate early morning JST (evening EST) or late evening JST (morning EST) for cross-Pacific meetings. During EDT (March–November), the gap narrows to 13 hours.

Best Meeting Times: JST and EST Overlap

The only overlap within normal hours is JST early morning and EST late afternoon: 7–9 AM JST corresponds to 5–7 PM EST (previous day). Many teams use asynchronous communication instead, handing off work across the dateline so one team’s end-of-day output becomes the other’s start-of-day input.

About These Time Zones

JST — Japan Standard Time

UTC Offset: UTC+9

EST — Eastern Standard Time

UTC Offset: UTC-5