Posted on December 31, 2019December 19, 2019 by Fraser PearcePlenary Indulgence: Te Deum The Te Deum. PLENARY INDULGENCE when recited publicly on the last day of the year. Otherwise a partial indulgence is granted to those who recite the Te Deum in thanksgiving. Enchiridion of Indulgences No 60. The chant can be viewed here.