To lose track of time is to be so absorbed you forget how late it is. Lose track of time completely.
It is a compliment to whatever you were doing, since only something absorbing does it. People lose track of time far more easily without a clock in the room.
1phraselose track of timeTo be so absorbed you forget how late it is.
“It is easy to lose track of time in a room with no window.”
lose track of time is a phrase.
Practised in Time & Calendar