DST of Laval in 2025
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
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At Sun Mar 9 02:00:00 2025, clocks in Laval are turned forward 1 hour to Sun Mar 9 03:00:00 2025 to start DST
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At Sun Nov 2 02:00:00 2025, clocks in Laval are turned backward 1 hour to Sun Nov 2 01:00:00 2025 to end DST
DST of Laval Over Years
| Year | Commences | Abbreviations | Time Change | Offset After |
| 1940 | 04-28, Sun 03:00 |
EST -> EDT | 1 hour forward (start of DST) | UTC-0400 |
| 1941 - 1941 | No changes, UTC-0400 all of the period | |||
| 1942 | 02-09, Mon 03:00 |
EDT -> EWT | 0 hour forward | UTC-0400 |
| 1943 - 1944 | No changes, UTC-0400 all of the period | |||
| 1945 | 08-14, Tue 19:00 |
EWT -> EPT | 0 hour forward | UTC-0400 |
| 09-30, Sun 01:00 |
EPT -> EST | 1 hour backward (end of DST) | UTC-0500 | |
| 1946 | 04-28, Sun 03:00 |
EST -> EDT | 1 hour forward (start of DST) | UTC-0400 |
| 09-29, Sun 01:00 |
EDT -> EST | 1 hour backward (end of DST) | UTC-0500 | |
| 1947 | 04-27, Sun 01:00 |
EST -> EDT | 1 hour forward (start of DST) | UTC-0400 |
| 09-27, Sat 23:00 |
EDT -> EST | 1 hour backward (end of DST) | UTC-0500 | |
| 1948 | 04-25, Sun 01:00 |
EST -> EDT | 1 hour forward (start of DST) | UTC-0400 |
| 09-25, Sat 23:00 |
EDT -> EST | 1 hour backward (end of DST) | UTC-0500 | |
| 1949 | 04-24, Sun 01:00 |
EST -> EDT | 1 hour forward (start of DST) | UTC-0400 |
| 11-26, Sat 23:00 |
EDT -> EST | 1 hour backward (end of DST) | UTC-0500 | |
