2nd session of the 45th Parliament of the United Kingdom
2 November 1971 - 26 October 1972
Parliament: 45th
Citation by calendar years: 1971-72
Citation by regnal years: 20 & 21 Eliz. 2
Wikidata ID: Q108991046
Regnal years
| Regnal year | Start date | End date |
| 20 Eliz. 2 | 6 February 1971 | 5 February 1972 |
| 21 Eliz. 2 | 6 February 1972 | 5 February 1973 |