about six o'clock
A man was washing down the front piazza with a pail of water . `` Is the doctor in ? '' asked Sam . `` No , sir , he wo n't he in until about six o'clock , '' said the man . `` How long has he been gone , may I ask ? '' `` He went to the city directly after breakfast this morning , for a consultation with some other doctors . '' `` He has n't any assistant ? ''