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English definition of “prime time”

prime time

noun    
[U] COMMUNICATIONS, MARKETING in television and radio broadcasting, the time of day when the largest number of people are watching or listening: The show aired Sunday evening in prime time and was watched by 15.7 million viewers. The advertisement will be broadcast during prime time.
[S] a good time for doing something: Real estate investors say now is a prime time to purchase a home. As spring kicks into action, this can be a prime time to start that home renovation project.
(not) ready for prime time COMMERCE (not) ready to be sold or presented to the public: This technology is not ready for prime time.
(Definition of prime time noun from the Cambridge Business English Dictionary © Cambridge University Press)
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