four o'clock
What do you say , Grant ? '' `` I am very willing , sir , if the fellows desire it , '' replied Richard , modestly . `` Very well . The race shall come off at four o'clock . Each leader shall have two hours to train his crew . The course shall be round Green Island and home , making a pull of about three miles . You shall draw lots for the choice of boats , though I do n't think there is a particle of difference between them . ''