What is the time difference between JST and CST?

JST is 15 hours behind CST. JST is UTC+9 and CST is UTC-6.

What is 9 AM JST in CST?

9 AM JST is 7 PM CST (previous day).

What is 12 PM JST in CST?

12 PM JST (noon) is 10 PM CST (previous day).

What are the best meeting times between JST and CST?

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

JST to CST Time Converter

Japan Standard Time → Central Standard Time

JST

UTC+9

Japan Standard Time

offset

-15h

CST is 15h behind

CST

UTC-6

Central Standard Time

CST observes DST — offset shifts ±1h during transitions

Japan Standard Time (JST) is 15 hours behind Central Standard Time (CST). When it is noon in JST, it is 10 PM in CST. This offset may change during Daylight Saving Time transitions.

Meeting planner tool Reverse: CST to JST

Cities in JST

🇯🇵Tokyo 🇯🇵Osaka

Cities in CST

🇺🇸Chicago 🇺🇸Houston 🇺🇸Dallas 🇺🇸Nashville 🇺🇸Minneapolis

All 24 Hours — JST to CST

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 & CST

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

Challenging overlap

JST and CST are 15 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→6 PM−1d 9 AM→7 PM−1d 10 AM→8 PM−1d 11 AM→9 PM−1d 12 PM→10 PM−1d 1 PM→11 PM−1d 2 PM→12 AM 3 PM→1 AM 4 PM→2 AM 5 PM→3 AM

Related Time Zone Conversions

Frequently Asked Questions — JST to CST

Japan Standard Time (JST) is 15 hours behind Central Standard Time (CST). JST is UTC+9 and CST is UTC-6. This offset may shift by ±1 hour during Daylight Saving Time transitions.