day-man—a man who does work during the day or on a day-shift:
- A company taxi is usually driven by both a dayman and a night-man.
man of the day—
1. an outstanding man of his time:
- Hamsun was a man of the day, who, despite his age, strove to make his ideal into a reality.
Cf.: man of the year—a man who has done the most to influence the events of the particular year (as featured by the U.S. newsmagazine Time):
- Mikhail Gorbachev was the man of the year for 1987, an eminently defensible choice….
2. (Military) a soldier on duty for the day:
- Cooked food was “dished out” by the orderly men of the day.