The short answer
Port of Spain is 13 hours behind Japan Standard Time.
Port of Spain☀
7:50:10am
AST · UTC-04:00 · Sun, Aug 30
Japan Standard Time☾
8:50:10pm
JST · UTC+09:00 · Sun, Aug 30
Read across to convert
Port of Spain
AST · UTC-04:00
Japan Standard Time
JST · UTC+09:00
Click any row to pin that hour across both zones.
12amSun
1pm
WORK1am
2pm
WORK2am
3pm
WORK3am
4pm
WORK4am
5pm
5am
6pm
6am
7pm
NOW
7am
8pm
8am
9pm
9am
WORK10pm
10am
WORK11pm
11am
WORK12amMon ·+1d
12pm
WORK1amMon ·+1d
1pm
WORK2amMon ·+1d
2pm
WORK3amMon ·+1d
3pm
WORK4amMon ·+1d
4pm
WORK5amMon ·+1d
5pm
6amMon ·+1d
6pm
7amMon ·+1d
7pm
8amMon ·+1d
8pm
9amMon ·+1d
WORK9pm
10amMon ·+1d
WORK10pm
11amMon ·+1d
WORK11pm
12pmMon ·+1d
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Port of Spain
6pm–7pm
Japan Standard Time
7am–8am
next day
Popular conversions
Quick reference.
9amPort of Spain=10pmJapan Standard Time
12pmPort of Spain=1amJapan Standard Time · next day
3pmPort of Spain=4amJapan Standard Time · next day
5pmPort of Spain=6amJapan Standard Time · next day
9pmPort of Spain=10amJapan Standard Time · next day
In context
What each side covers.
Port of Spain
7:50amAST · UTC-04:00
Trinidad and Tobago
Japan Standard Time
8:50pmJST · UTC+09:00
Related converters
Other popular pairs.
Pacific Time
4:50am
India Standard Time
5:20pm
Pacific Time to India12 hours 30 minutes behind
Eastern Daylight Time
7:50am
Central European Time
1:50pm
Eastern Time to Central Europe6 hours behind
India Standard Time
5:20pm
Eastern Daylight Time
7:50am
India to Eastern Time9 hours 30 minutes ahead
British Summer Time
12:50pm
India Standard Time
5:20pm
London to India4 hours 30 minutes behind
Pacific Daylight Time
4:50am
Eastern Daylight Time
7:50am
Pacific to Eastern Time3 hours behind
Central European Time
1:50pm
India Standard Time
5:20pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Port of Spain and Japan Standard Time. Can't find what you need? Email [email protected].
- What is the time difference between Port of Spain and Japan Standard Time?
- Port of Spain 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 9am in Port of Spain, what time is it in Japan Standard Time?
- 9am in Port of Spain is 10pm in Japan Standard Time. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
- What's the best time for a call between Port of Spain and Japan Standard Time?
- There's no comfortable 9-to-5 overlap between Port of Spain 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 — AST 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.