Tokyo to Ottawa South time converter

Ottawa South is 13 hours behind Tokyo. When it is 9:00 AM in Tokyo, it is 8:00 PM (Tue, Oct 20) in Ottawa South.

Tokyo JST

Wednesday, October 21, 2026

Ottawa South EDT

Tuesday, October 20, 2026

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

Tokyo to Ottawa South conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 21, 2026 – Nov 1, 2026: -13h
  • Nov 1, 2026 – Mar 14, 2027: -14h
  • Mar 14, 2027 – Oct 21, 2027: -13h

Distance

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

More conversions

Ottawa South to TokyoTokyo to New YorkTokyo to LondonTokyo to Los AngelesTokyo to ChicagoTokyo to TorontoTokyo to São PauloTokyo to ParisTokyo to BerlinTokyo to MoscowTokyo to DubaiTokyo to New DelhiTokyo to Bangkok
New York to Ottawa SouthLondon to Ottawa SouthLos Angeles to Ottawa SouthChicago to Ottawa SouthToronto to Ottawa SouthSão Paulo to Ottawa SouthParis to Ottawa SouthBerlin to Ottawa SouthMoscow to Ottawa SouthDubai to Ottawa SouthNew Delhi to Ottawa SouthBangkok to Ottawa South

Questions and answers

What is the time difference between Tokyo and Ottawa South?

Ottawa South is 13 hours behind Tokyo.

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

When it is 9:00 AM in Tokyo, it is 8:00 PM (Tue, Oct 20) in Ottawa South.

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

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

Does the time difference between Tokyo and Ottawa South change?

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