Ottawa South to Tokyo time converter

Tokyo is 13 hours ahead of Ottawa South. When it is 9:00 AM in Ottawa South, it is 10:00 PM in Tokyo.

Ottawa South EDT

Tuesday, October 20, 2026

Tokyo JST

Wednesday, October 21, 2026

Ottawa South
Ontario, Canada
Tue, Oct 20
EDTUTC-4
Tokyo
Japan
Wed, Oct 21
JSTUTC+9+13h
Finding your time zone…
Shared working hours (9:00–18:00)

Ottawa South to Tokyo conversion table

Every hour of today in Ottawa South and the matching time in Tokyo. Light rows are typical working hours (9:00–18:00).

Ottawa SouthTokyo
12:00 AM1:00 PM
1:00 AM2:00 PM
2:00 AM3:00 PM
3:00 AM4:00 PM
4:00 AM5:00 PM
5:00 AM6:00 PM
6:00 AM7:00 PM
7:00 AM8:00 PM
8:00 AM9:00 PM
9:00 AM10:00 PM
10:00 AM11:00 PM
11:00 AM12:00 AM+1 day
12:00 PM1:00 AM+1 day
1:00 PM2:00 AM+1 day
2:00 PM3:00 AM+1 day
3:00 PM4:00 AM+1 day
4:00 PM5:00 AM+1 day
5:00 PM6:00 AM+1 day
6:00 PM7:00 AM+1 day
7:00 PM8:00 AM+1 day
8:00 PM9:00 AM+1 day
9:00 PM10:00 AM+1 day
10:00 PM11:00 AM+1 day
11:00 PM12:00 PM+1 day

Best time to call or meet

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in Ottawa South (9:00 AM – 11:00 AM in Tokyo): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Ottawa South and Tokyo switch clocks on different dates:

  • Oct 20, 2026 – Nov 1, 2026: +13h
  • Nov 1, 2026 – Mar 14, 2027: +14h
  • Mar 14, 2027 – Oct 20, 2027: +13h

Distance

Ottawa South and Tokyo are 10,324 km (6,415 miles) apart in a straight line.

More conversions

Tokyo to Ottawa SouthOttawa South to New YorkOttawa South to LondonOttawa South to Los AngelesOttawa South to ChicagoOttawa South to TorontoOttawa South to São PauloOttawa South to ParisOttawa South to BerlinOttawa South to MoscowOttawa South to DubaiOttawa South to New DelhiOttawa South to Bangkok
New York to TokyoLondon to TokyoLos Angeles to TokyoChicago to TokyoToronto to TokyoSão Paulo to TokyoParis to TokyoBerlin to TokyoMoscow to TokyoDubai to TokyoNew Delhi to TokyoBangkok to Tokyo

Questions and answers

What is the time difference between Ottawa South and Tokyo?

Tokyo is 13 hours ahead of Ottawa South.

What time is it in Tokyo when it is 9 AM in Ottawa South?

When it is 9:00 AM in Ottawa South, it is 10:00 PM in Tokyo.

When is the best time to call Tokyo from Ottawa South?

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in Ottawa South (9:00 AM – 11:00 AM in Tokyo): working hours on one side, early or late on the other.

Does the time difference between Ottawa South and Tokyo change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.