| white | St Thomas Aquinas, friar, priest and Doctor of the Church | Feast |
| | Mass of the feast; gloria, preface of the feast. |
| | Hours of the feast; Te Deum |
| OP | Plenary indulgence under usual conditions for brethren who renew, at least privately, their resolve to fulfil faithfully the duties of their vocation. See Appendix. |
| | | CLAYTON, Victoria, and HONIARA, Solomon Islands | | white | St Thomas Aquinas, friar, priest & Doctor of Church | Solemnity | | Titular saint of the chapel & community.
as above, but with the rank of Solemnity. |
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