The short answer

10pm in Central Time is 12pm in Japan Standard Time on the next day.

Central Time is 14 hours behind Japan Standard Time. It falls outside the 9-to-5 in Central Time but lands inside working hours in Japan Standard Time.

Central Time
10pm
Japan Standard Time
12pm
next day
Right now
6:09amCDT · UTC-05:00 · Mon, Jun 22
8:09pmJST · UTC+09:00 · Mon, Jun 22
Read across to convert
Central Time
CDT · UTC-05:00
6:09am ☀
Japan Standard Time
JST · UTC+09:00
8:09pm ☾
Pinned10pmCentral Time=12pmJapan Standard Time · Tue (next day)
12amMon
2pm
WORK
1am
3pm
WORK
2am
4pm
WORK
3am
5pm
4am
6pm
5am
7pm
NOW
6am
8pm
7am
9pm
8am
10pm
9am
WORK
11pm
10am
WORK
12amTue ·+1d
11am
WORK
1amTue ·+1d
12pm
WORK
2amTue ·+1d
1pm
WORK
3amTue ·+1d
2pm
WORK
4amTue ·+1d
3pm
WORK
5amTue ·+1d
4pm
WORK
6amTue ·+1d
5pm
7amTue ·+1d
6pm
8amTue ·+1d
7pm
9amTue ·+1d
WORK
8pm
10amTue ·+1d
WORK
9pm
11amTue ·+1d
WORK
PINNED
10pm
12pmTue ·+1d
WORK
11pm
1pmTue ·+1d
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Central Time
5pm–7pm
=
Japan Standard Time
7am–9am
next day
Popular conversions

Quick reference.

9amCentral Time=11pmJapan Standard Time
12pmCentral Time=2amJapan Standard Time · next day
3pmCentral Time=5amJapan Standard Time · next day
5pmCentral Time=7amJapan Standard Time · next day
9pmCentral Time=11amJapan Standard Time · next day
In context

What each side covers.

Central Time
CDT · UTC-05:00
6:09am
Cities on this clock
Japan Standard Time
JST · UTC+09:00
8:09pm
Cities on this clock
Did you mean…? “CDT” is shared by several places. This page shows Central Time (US & Canada) — or switch to China Time.

Frequently asked

Quick answers about converting between Central Time and Japan Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Central Time and Japan Standard Time?
Central Time is 14 hours behind Japan Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 10pm in Central Time, what time is it in Japan Standard Time?
10pm in Central Time is 12pm in Japan Standard Time on the next day. It falls outside the 9-to-5 in Central Time but lands inside working hours in Japan Standard Time. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Central Time and Japan Standard Time?
There's no comfortable 9-to-5 overlap between Central Time and Japan Standard Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — CDT and JST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.