no time to lose

You must do quickly whatever it is that you want to do

Synonyms: hurry up, come on, get a move on, get or put your skates on, what are you waiting for?, there’s no time to wait, snap to it, jump to it, chop-chop

He has no time to lose as his project is due in first thing tomorrow morning.

He rushed home, realising there was no time to lose.

He could be here any second, so there’s no time to lose.