four o'clock
Peter was glad when his grandmother said he might go . `` One day in the autumn , he said : ` Grandmother , may I go and see William and Jack ? ' Those were the names of the other boys . '' ` Yes , ' she said , ` you can go , if you will promise to come home at four o'clock . It gets dark early , and I am afraid to have you in the wood later than that . ' `` So Peter promised . He had a nice time with William and Jack , and at four o'clock he started to go home ; for he was a boy of his word .