消しょう灯とう時じ間かん

noun

lights-out time

Refers to the designated time when lights must be turned off, typically in dormitories, hospitals, or other institutional settings.

• 寮りょうの消しょう灯とう時じ間かんは夜よる10時じです。

  Lights-out time in the dormitory is 10 p.m.

• 消しょう灯とう時じ間かんを過すぎると、廊ろう下かの明あかりも消きえます。

  After lights-out time, the hallway lights also go off.