Waste of time is an incalculable loss
The great politician-pandita named Canakya said that even one moment
of time cannot be returned even if one is prepared to pay millions of
dollars. One cannot calculate the amount of loss there is in wasting
valuable time. Either materially or spiritually, one should be very alert
in utilizing the time which he has at his disposal.
Srimad Bhagavatam 3.30.1 purport