Ever heard about this?

(Found on twitter) "I was taught when learning to serve at the altar to remove my watch, because we were moving from time into eternity..."
The look on his face says it all
F M Shyanguya
AMDG@padretweets ought to reference an authoritative Church instruction on such.
Perhaps he just wants to have at hand the old Latin sentence: tempus fugit, aeternitas manet