Events in April 1971
| MonMonday | TueTuesday | WedWednesday | ThuThursday | FriFriday | SatSaturday | SunSunday |
|---|
| 2929 March 1971 | 3030 March 1971 | 3131 March 1971 | 11 April 1971 | 22 April 1971 | 33 April 1971 | 44 April 1971 |
| 55 April 1971 | 66 April 1971 | 77 April 1971 | 88 April 1971 | 99 April 1971 | 1010 April 1971 | 1111 April 1971 |
| 1212 April 1971 | 1313 April 1971 | 1414 April 1971 | 1515 April 1971 | 1616 April 1971 | 1717 April 1971 | 1818 April 1971 |
| 1919 April 1971 | 2020 April 1971 | 2121 April 1971 | 2222 April 1971 | 2323 April 1971 | 2424 April 1971 | 2525 April 1971 |
| 2626 April 1971 | 2727 April 1971 | 2828 April 1971 | 2929 April 1971 | 3030 April 1971 | 11 May 1971 | 22 May 1971 |