From Longman Dictionary of Contemporary EnglishI/we don’t have all dayI/we don’t have all dayTIME4#used to say that you want someone to do something faster because you do not have enough time to wait for them to finishHurry up! I haven’t got all day! →day
Examples from the Corpus
I/we don’t have all day• But Sally does not have all day here.• Hurry up, we don't have all day!