| Date | Day | Commons day type | Commons praying | Lords day type | Lords praying |
|---|---|---|---|---|---|
| Wednesday | 28th | Prorogation | False | Prorogation | False |
28th December 1921 is in the prorogation between the 4th and 5th sessions of the 31st Parliament, being the 4th prorogation of that Parliament.
Papers laid during this prorogation are reported by both Houses in the 5th session of the 31st Parliament.