What is the time difference between JST and EST?

JST is 14 hours behind EST. JST is UTC+9 and EST is UTC-5.

What is 9 AM JST in EST?

9 AM JST is 8 PM EST (previous day).

What is 12 PM JST in EST?

12 PM JST (noon) is 11 PM EST (previous day).

What are the best meeting times between JST and EST?

There is no standard business hours overlap between JST and EST.

JST to EST Time Converter

Japan Standard Time → Eastern Standard Time

JST

UTC+9

Japan Standard Time

offset

-14h

EST is 14h behind

EST

UTC-5

Eastern Standard Time

EST observes DST — offset shifts ±1h during transitions

Japan Standard Time (JST) is 14 hours behind Eastern Standard Time (EST). When it is noon in JST, it is 11 PM in EST. This offset may change during Daylight Saving Time transitions.

Meeting planner tool Reverse: EST to JST

Cities in JST

🇯🇵Tokyo 🇯🇵Osaka

Cities in EST

🇺🇸New York 🇺🇸Boston 🇺🇸Miami 🇺🇸Atlanta

All 24 Hours — JST to EST

Click any row to see the full detail page. Current hour in JST is highlighted.

Both business hoursPartial overlap

12 AM6 AM12 PM6 PM11 PM

Best Meeting Times — JST & EST

No standard business-hours overlap between JST and EST. Consider early morning or evening calls.

Challenging overlap

JST and EST are 14 hours apart with no shared business-hours window. Try scheduling at 8 AM in the earlier timezone or 6 PM in the later one.

8 AM→7 PM−1d 9 AM→8 PM−1d 10 AM→9 PM−1d 11 AM→10 PM−1d 12 PM→11 PM−1d 1 PM→12 AM 2 PM→1 AM 3 PM→2 AM 4 PM→3 AM 5 PM→4 AM

Related Time Zone Conversions

Frequently Asked Questions — JST to EST

Japan Standard Time (JST) is 14 hours behind Eastern Standard Time (EST). JST is UTC+9 and EST is UTC-5. This offset may shift by ±1 hour during Daylight Saving Time transitions.