The phrase "average workday" refers to a typical or usual day spent working. It implies a regular schedule and the tasks one typically performs on a regular basis. Full definition
It's begun collecting clients, and its product is set to launch in early 2018, potentially making the average workday that much smoother for businesses everywhere. (inc.com)
Monday through Thursday the average workday of this aspiring NFL coach can stretch from 7:30 a.m. to 12:15 a.m. Friday and Saturday are six to eight hours shorter, and he spends Sunday afternoons upstairs in the coaches» booth. (si.com)