two o'clock
You see , every half hour is rung . '' `` Worse and worse ! '' protested Mollie . `` What time is it at two o'clock ? '' `` Four bells , '' answered Betty , promptly . `` Why , I thought four bells was four o'clock , '' spoke Grace . `` No , eight bells is four o'clock in the after-noon , and also four o'clock in the morning .