What time zone is Thunder Bay in?

Thunder Bay uses the America/Thunder_Bay time zone, currently UTC-04:00.

Does Thunder Bay observe daylight saving time?

Yes, Thunder Bay changes its clocks for daylight saving time.

What is the time difference between Thunder Bay and UTC?

Thunder Bay is currently UTC-04:00.

🇨🇦 Ontario, Canada

Current local time in Thunder Bay

As of Wednesday 28 October 2026, the local time in Thunder Bay, Canada is 07:23 (America/Thunder_Bay, UTC-04:00). Canada observes daylight saving time and is currently on daylight saving time.

07:23:55Wednesday, 28 October 2026

America/Thunder_Bay · EDT · UTC-04:00

4h behind your local time.

Time zone

America/Thunder_Bay (EDT)

UTC offset

UTC-04:00

Daylight saving

Currently observing DST · changes 1 Nov 2026, 01:00 to UTC-05:00

Daylight

08:37 18:44 10h 7m

Thunder Bay on the map

Time difference from Thunder Bay

Cities near Thunder Bay

Thunder Bay time — frequently asked questions

What time zone is Thunder Bay in?: Thunder Bay uses the America/Thunder_Bay time zone, currently EDT (UTC-04:00).
Does Thunder Bay observe daylight saving time?: Yes. Thunder Bay is currently on daylight saving time and the clocks change next on 1 November 2026.
What is the time difference between Thunder Bay and UTC?: Thunder Bay is UTC-04:00, so local time is -04:00 hours from Coordinated Universal Time.

Last updated 28 Oct 2026, 11:23 UTC. Times are calculated live from the IANA time zone database.