| Date | Day | Commons day type | Commons praying | Lords day type | Lords praying |
|---|---|---|---|---|---|
| Friday | 21st | Prorogation | False | Prorogation | False |
21st August 1863 forms part of the prorogation between the 5th and 6th sessions of the 18th Parliament, being the 5th prorogation of that Parliament.
Papers laid during this prorogation are reported by both Houses in the 6th session of the 18th Parliament.