DST of Tucson in 2025
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
No time zone changes for Tucson in 2025
DST of Tucson Over Years
| Year | Commences | Abbreviations | Time Change | Offset After |
| 1940 - 1941 | No changes, UTC-0700 all of the period | |||
| 1942 | 02-09, Mon 03:00 |
MST -> MWT | 1 hour forward (start of DST) | UTC-0600 |
| 1943 - 1943 | No changes, UTC-0600 all of the period | |||
| 1944 | 12-31, Fri 23:01 |
MWT -> MST | 1 hour backward (end of DST) | UTC-0700 |
| 04-01, Sat 01:01 |
MST -> MWT | 1 hour forward (start of DST) | UTC-0600 | |
| 09-30, Sat 23:01 |
MWT -> MST | 1 hour backward (end of DST) | UTC-0700 | |
| 1945 - 1949 | No changes, UTC-0700 all of the period | |||
