en
72 hours
/ˈseventi tuː ˈaʊərz/
Definition
1
A duration of exactly three days; commonly used in medical, legal, or administrative contexts to define a specific time-window of urgency or observation.
2
A colloquial idiom expressing the approximate time required for tasks that are notoriously difficult or prone to being pushed to the last minute.
Examples
My project was due in 72 hours, so I naturally spent 70 of them agonizing over the font choice.
The customer was told the part would arrive within 72 hours, which is corporate speak for 'when the stars align'.
I have 72 hours to turn my life around, but let's be honest, I'll probably just watch another season of a show I don't even like.