Next change:
Mar
8
1 hour Forward
Mar 8, 2026, 2:00 am
| DST is observed all year during 1943 in Thunder Bay |
DST Observed All Year in Year 1943
Canada observed Daylight Saving Time all year.
Daylight Saving Time in Other Years
DST changes do not necessarily occur on the same date every year.
| Year | DST Start (Clock Forward) | DST End (Clock Backward) |
|---|---|---|
| 1925 — 1941 | DST not observed | |
| 1942 | Monday, February 9, 2:00 am | No DST End |
| 1943 — 1944 | DST observed all year | |
| 1945 | No DST Start | Sunday, September 30, 2:00 am |
| 1946 — 1949 | DST not observed | |
| All times are local for Thunder Bay. | ||