JST to EST Time Converter
Convert Japan Standard Time to Eastern Standard Time
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Full Conversion Table
JST to EST for every hour
| JST | EST |
|---|---|
| 00:00 | --:-- |
| 01:00 | --:-- |
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| 03:00 | --:-- |
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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
Standard UTC Offset: UTC+9
Reference time zone: Asia/Tokyo
EST — Eastern Standard Time
Standard UTC Offset: UTC-5
Reference time zone: America/New_York
The live clocks, quick converter, and table on this page use the real current offset of each zone's reference region, so daylight saving time is applied automatically whenever it is in effect.