The short answer

9pm in Port-au-Prince is 10am in Japan Standard Time on the next day.

Port-au-Prince is 13 hours behind Japan Standard Time. It falls outside the 9-to-5 in Port-au-Prince but lands inside working hours in Japan Standard Time.

Port-au-Prince
9pm
Japan Standard Time
10am
next day
Right now
7:46pmEDT · UTC-04:00 · Tue, Jun 23
8:46amJST · UTC+09:00 · Wed, Jun 24
Read across to convert
Port-au-Prince
EDT · UTC-04:00
7:46pm ☾
Japan Standard Time
JST · UTC+09:00
8:46am ☀
Pinned9pmPort-au-Prince=10amJapan Standard Time · Wed (next day)
12amTue
1pm
WORK
1am
2pm
WORK
2am
3pm
WORK
3am
4pm
WORK
4am
5pm
5am
6pm
6am
7pm
7am
8pm
8am
9pm
9am
WORK
10pm
10am
WORK
11pm
11am
WORK
12amWed ·+1d
12pm
WORK
1amWed ·+1d
1pm
WORK
2amWed ·+1d
2pm
WORK
3amWed ·+1d
3pm
WORK
4amWed ·+1d
4pm
WORK
5amWed ·+1d
5pm
6amWed ·+1d
6pm
7amWed ·+1d
NOW
7pm
8amWed ·+1d
8pm
9amWed ·+1d
WORK
PINNED
9pm
10amWed ·+1d
WORK
10pm
11amWed ·+1d
WORK
11pm
12pmWed ·+1d
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Port-au-Prince
6pm–7pm
=
Japan Standard Time
7am–8am
next day
Popular conversions

Quick reference.

9amPort-au-Prince=10pmJapan Standard Time
12pmPort-au-Prince=1amJapan Standard Time · next day
3pmPort-au-Prince=4amJapan Standard Time · next day
5pmPort-au-Prince=6amJapan Standard Time · next day
9pmPort-au-Prince=10amJapan Standard Time · next day
In context

What each side covers.

Port-au-Prince
EDT · UTC-04:00
7:46pm
Cities on this clock
Japan Standard Time
JST · UTC+09:00
8:46am
Cities on this clock

Frequently asked

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

What is the time difference between Port-au-Prince and Japan Standard Time?
Port-au-Prince is 13 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 9pm in Port-au-Prince, what time is it in Japan Standard Time?
9pm in Port-au-Prince is 10am in Japan Standard Time on the next day. It falls outside the 9-to-5 in Port-au-Prince 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 Port-au-Prince and Japan Standard Time?
There's no comfortable 9-to-5 overlap between Port-au-Prince 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 — EDT 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.