four o'clock
`` I am awfully sorry , Harriet , '' Charlie Meyers stumbled over his words as he helped her out of his machine . `` You know I did n't exactly mean to refuse your request . I 'll be awfully glad to -- '' But Harriet 's curt good-bye checked his apologetic speech , and he turned and drove swiftly away . `` Mrs. Wilson 's tea is at four o'clock , girls , remember , '' Harriet announced a day or so later , looking up from the note she was writing . `` Are you actually going sight-seeing again to-day before the reception ? Truly , I never imagined such energy ! '' `` Oh , come , Harriet Hamlin , do n't be sarcastic , '' Ruth rejoined .