The short answer

1pm in British Indian Ocean Territory is 4pm in Japan Standard Time.

British Indian Ocean Territory is 3 hours behind Japan Standard Time. Both sides are inside the standard 9-to-5 working day, so this is a sociable time for a call in both places.

British Indian Ocean Territory
1pm
Japan Standard Time
4pm
Right now
8:27am+06:00 · UTC+06:00 · Sat, Jun 27
11:27amJST · UTC+09:00 · Sat, Jun 27
Read across to convert
British Indian Ocean Territory
+06:00 · UTC+06:00
8:27am ☀
Japan Standard Time
JST · UTC+09:00
11:27am ☀
Pinned1pmBritish Indian Ocean Territory=4pmJapan Standard Time
12amSat
3am
1am
4am
2am
5am
3am
6am
4am
7am
5am
8am
6am
9am
WORK
7am
10am
WORK
NOW
8am
11am
WORK
9am
WORK
12pm
WORK
10am
WORK
1pm
WORK
11am
WORK
2pm
WORK
12pm
WORK
3pm
WORK
PINNED
1pm
WORK
4pm
WORK
2pm
WORK
5pm
3pm
WORK
6pm
4pm
WORK
7pm
5pm
8pm
6pm
9pm
7pm
10pm
8pm
11pm
9pm
12amSun ·+1d
10pm
1amSun ·+1d
11pm
2amSun ·+1d
daylightnightworking hoursoverlap
Best time to meet
Best for a call
British Indian Ocean Territory
9am–2pm
=
Japan Standard Time
12pm–5pm
Popular conversions

Quick reference.

9amBritish Indian Ocean Territory=12pmJapan Standard Time
12pmBritish Indian Ocean Territory=3pmJapan Standard Time
3pmBritish Indian Ocean Territory=6pmJapan Standard Time
5pmBritish Indian Ocean Territory=8pmJapan Standard Time
9pmBritish Indian Ocean Territory=12amJapan Standard Time · next day
In context

What each side covers.

8:27am
Cities on this clock
Japan Standard Time
JST · UTC+09:00
11:27am
Cities on this clock

Frequently asked

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

What is the time difference between British Indian Ocean Territory and Japan Standard Time?
British Indian Ocean Territory is 3 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 1pm in British Indian Ocean Territory, what time is it in Japan Standard Time?
1pm in British Indian Ocean Territory is 4pm in Japan Standard Time. Both sides are inside the standard 9-to-5 working day, so this is a sociable time for a call in both places. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between British Indian Ocean Territory and Japan Standard Time?
9am–2pm in British Indian Ocean Territory lines up with 12pm–5pm in Japan Standard Time — both sides are inside a 9-to-5 working day.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — +06:00 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.