Ottawa South to London time converter

London is 5 hours ahead of Ottawa South. When it is 9:00 AM in Ottawa South, it is 2:00 PM in London.

Ottawa South EDT

Wednesday, October 21, 2026

London BST

Wednesday, October 21, 2026

Ottawa South
Ontario, Canada
Wed, Oct 21
EDTUTC-4
London
United Kingdom
Wed, Oct 21
BSTUTC+1+5h
Finding your time zone…
Shared working hours (9:00–18:00)

Ottawa South to London conversion table

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

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

Best time to call or meet

Both sides are at work from 9:00 AM – 1:00 PM in Ottawa South (2:00 PM – 6:00 PM in London).

Daylight saving time and the difference

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

  • Oct 21, 2026 – Oct 24, 2026: +5h
  • Oct 24, 2026 – Nov 1, 2026: +4h
  • Nov 1, 2026 – Mar 14, 2027: +5h
  • Mar 14, 2027 – Mar 27, 2027: +4h
  • Mar 27, 2027 – Oct 21, 2027: +5h

Distance

Ottawa South and London are 5,362 km (3,332 miles) apart in a straight line.

More conversions

London to Ottawa SouthOttawa South to New YorkOttawa 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 BangkokOttawa South to Singapore
New York to LondonLos Angeles to LondonChicago to LondonToronto to LondonSão Paulo to LondonParis to LondonBerlin to LondonMoscow to LondonDubai to LondonNew Delhi to LondonBangkok to LondonSingapore to London

Questions and answers

What is the time difference between Ottawa South and London?

London is 5 hours ahead of Ottawa South.

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

When it is 9:00 AM in Ottawa South, it is 2:00 PM in London.

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

Both sides are at work from 9:00 AM – 1:00 PM in Ottawa South (2:00 PM – 6:00 PM in London).

Does the time difference between Ottawa South and London change?

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