| Date | Day | Commons day type | Commons praying | Lords day type | Lords praying |
|---|---|---|---|---|---|
| Wednesday | 20th | Prorogation | False | Prorogation | False |
20th April 1859 is in the prorogation between the 3rd session and the dissolution of the 17th Parliament, being the 3rd prorogation of that Parliament.
Papers laid during this prorogation are reported by both Houses in the 1st session of the 18th Parliament.