Thunder Bay, Canada
Current time in Canada
Time zone: EDT (UTC/GMT -04:00) — America/Toronto
| Local Clock Offset: Yesterday, -12 H |
| Time zone: (UTC/GMT -4 ) Thunder Bay, Canada |
Current Time in other Cities of Canada
What time zone is Thunder Bay in?
Thunder Bay keeps EDT (4 hours behind UTC, UTC-04:00). Its database zone is America/Toronto — worth knowing if you are scheduling anything that has to survive a daylight saving change.
One date to watch: Sunday, 01 November 2026. That is when Thunder Bay goes back 1 hour onto EST — recurring meetings set before then will land an hour out unless the calendar handles zones properly.
Across Canada there are 8 distinct time zones among these 53 cities, so "local time" there depends entirely on which city you mean.
Population: about 107,909 — 45th largest of the 48 Canada cities indexed here.
Time gaps from Thunder Bay right now
Live differences from Thunder Bay, calculated from each zone's rules as they stand today rather than a fixed table.
| New York | UTC-04:00 | same time as Thunder Bay |
| Los Angeles | UTC-07:00 | Thunder Bay is 3 hours ahead |
| London | UTC+01:00 | Thunder Bay is 5 hours behind |
| Paris | UTC+02:00 | Thunder Bay is 6 hours behind |
| Dubai | UTC+04:00 | Thunder Bay is 8 hours behind |
| Mumbai | UTC+05:30 | Thunder Bay is 9 hours 30 minutes behind |
| Shanghai | UTC+08:00 | Thunder Bay is 12 hours behind |
| Tokyo | UTC+09:00 | Thunder Bay is 13 hours behind |
| Sydney | UTC+10:00 | Thunder Bay is 14 hours behind |
| Sao Paulo | UTC-03:00 | Thunder Bay is 1 hour behind |
Best time to call Thunder Bay
Overlap of a normal working day, shown in Thunder Bay time — outside these windows one side is off the clock.
| New York | 09:00–17:00 in Thunder Bay | 8 hours overlap |
| Sao Paulo | 09:00–16:00 in Thunder Bay | 7 hours overlap |
| Los Angeles | 12:00–17:00 in Thunder Bay | 5 hours overlap |
| London | 09:00–12:00 in Thunder Bay | 3 hours overlap |
No shared working window exists with Dubai, Mumbai, Shanghai or Tokyo, so those calls have to sit outside somebody's normal hours.
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