Events in April 1966
| MonMonday | TueTuesday | WedWednesday | ThuThursday | FriFriday | SatSaturday | SunSunday |
|---|
| 2828 March 1966 | 2929 March 1966 | 3030 March 1966 | 3131 March 1966 | 11 April 1966 | 22 April 1966 | 33 April 1966 |
| 44 April 1966 | 55 April 1966 | 66 April 1966 | 77 April 1966 | 88 April 1966 | 99 April 1966 | 1010 April 1966 |
| 1111 April 1966 | 1212 April 1966 | 1313 April 1966 | 1414 April 1966 | 1515 April 1966 | 1616 April 1966 | 1717 April 1966 |
| 1818 April 1966 | 1919 April 1966 | 2020 April 1966 | 2121 April 1966 | 2222 April 1966 | 2323 April 1966 | 2424 April 1966 |
| 2525 April 1966 | 2626 April 1966 | 2727 April 1966 | 2828 April 1966 | 2929 April 1966 | 3030 April 1966 | 11 May 1966 |