An hour of recreation in the evening, spent by children with their parents; (also, with capital initials) the title of a BBC radio programme (first broadcast 1922, discontinued 1961).
Origin
Mid 19th century.
Definition of children's hour in US English:
children's hour
noun
historical
An hour of recreation in the evening, spent by children with their parents; (also, with capital initials) the title of a BBC radio programme (first broadcast 1922, discontinued 1961).