London to Thunder Bay time converter

Thunder Bay is 5 hours behind London. When it is 9:00 AM in London, it is 4:00 AM in Thunder Bay.

London BST

Monday, October 19, 2026

Thunder Bay EDT

Monday, October 19, 2026

London
United Kingdom
Mon, Oct 19
BSTUTC+1
Thunder Bay
Ontario, Canada
Mon, Oct 19
EDTUTC-4-5h
Finding your time zone…
Shared working hours (9:00–18:00)

London to Thunder Bay conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

The difference changes during the year because London and Thunder Bay switch clocks on different dates:

  • Oct 19, 2026 – Oct 25, 2026: -5h
  • Oct 25, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Mar 28, 2027: -4h
  • Mar 28, 2027 – Oct 19, 2027: -5h

Distance

London and Thunder Bay are 5,976 km (3,713 miles) apart in a straight line.

More conversions

Thunder Bay to LondonLondon to New YorkLondon to Los AngelesLondon to ChicagoLondon to TorontoLondon to São PauloLondon to ParisLondon to BerlinLondon to MoscowLondon to DubaiLondon to New DelhiLondon to BangkokLondon to Singapore
New York to Thunder BayLos Angeles to Thunder BayChicago to Thunder BayToronto to Thunder BaySão Paulo to Thunder BayParis to Thunder BayBerlin to Thunder BayMoscow to Thunder BayDubai to Thunder BayNew Delhi to Thunder BayBangkok to Thunder BaySingapore to Thunder Bay

Questions and answers

What is the time difference between London and Thunder Bay?

Thunder Bay is 5 hours behind London.

What time is it in Thunder Bay when it is 9 AM in London?

When it is 9:00 AM in London, it is 4:00 AM in Thunder Bay.

When is the best time to call Thunder Bay from London?

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

Does the time difference between London and Thunder Bay change?

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