time limit
Definitions
A fixed period of time by which something must be completed.
A specified duration allowed for the performance of an activity or task.
Examples
The students were nervous because the exam had a strict time limit.
We need to finish the project by Friday, so please keep the time limit in mind.
Synonyms
deadline cutoff point time constraint allotted time expiration date
Antonyms
no deadline unlimited time open-ended indefinite duration no restriction