| Date | Day | Commons day type | Commons praying | Lords day type | Lords praying |
|---|---|---|---|---|---|
| Friday | 13th | Prorogation | False | Prorogation | False |
13th September 1861 forms part of the prorogation between the 3rd and 4th sessions of the 18th Parliament, being the 3rd prorogation of that Parliament.
Papers laid during this prorogation are reported by both Houses in the 4th session of the 18th Parliament.