five o'clock
I 've never seen it by firelight , and I 'll have my house-warming to-night ! '' `` Oh no , indeed ! I must go back . There 's the five o'clock whistle , now ! '' `` Well , we 've an hour yet . You must get warm before you go . '' He went out , and quickly returned with an armful of wood and shavings , which he crammed into the cold fireplace .