call it a night

same meaning as Òcall it a day,Ó however, generally used at nighttime.

After responding to several packets of discovery, the lawyers and paralegals decided to call it a night.

News & Articles

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• King James courts big #s
  Call it a night of “seconds.” The Miami Heat won their second consecutive NBA title Thursday night — which was also the second-highest-rated NBA game in ABC history. Miami’s 95-88 victory over San Antonio averaged 26.3 million viewers, according to Nielsen. That was also the most-watched telecast on all...
  June 22, 2013 - New York Post