four
o'clock
`` Why , Hippy Wingate , what are you doing here so early ? '' demanded Nora , from the porch swing . `` You ca n't have your dinner yet . It 's only four o'clock . When you 're invited to six o'clock dinner you must n't arrive two hours beforehand . Did n't you know that ? '' This wifely counsel was accompanied by a teasing smile that belied its harshness .