about three o'clock
This was not to determine if McCarthy was on time , but to see if the watch was right . McCarthy had recovered his good humor . He threw a joke at the negro polishing the brass , and paused genially to exchange a word with the elevator starter . `` Worked until about three o'clock , '' the latter answered a question . `` Got it fixed all right . No , they did n't say what was the matter . Something to do with the wires , I suppose . ''