To get a jump on the workday and their co-workers, many professionals are putting in four hours of work before the standard eight-hour time shift. Wall Street Journal \u201cOn the Clock\u201d columnist Callum Borchers joins host J.R. Whalen to discuss.\n\n\n\nSign up for the WSJ's free Markets A.M. newsletter.\xa0\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices