Events in September 1940
| MonMonday | TueTuesday | WedWednesday | ThuThursday | FriFriday | SatSaturday | SunSunday |
|---|---|---|---|---|---|---|
| August 26, 1940 | August 27, 1940 | August 28, 1940 | August 29, 1940 | August 30, 1940 | August 31, 1940 | September 1, 1940 |
| September 2, 1940 | September 3, 1940 | September 4, 1940 | September 5, 1940 | September 6, 1940 | September 7, 1940 | September 8, 1940 |
| September 9, 1940 | September 10, 1940 | September 11, 1940 | September 12, 1940 | September 13, 1940 | September 14, 1940 | September 15, 1940 |
| September 16, 1940 | September 17, 1940 | September 18, 1940 | September 19, 1940 | September 20, 1940 | September 21, 1940 | September 22, 1940 |
| September 23, 1940 | September 24, 1940 | September 25, 1940 | September 26, 1940 | September 27, 1940 | September 28, 1940 | September 29, 1940 |
| September 30, 1940 | October 1, 1940 | October 2, 1940 | October 3, 1940 | October 4, 1940 | October 5, 1940 | October 6, 1940 |