Time served is also a term used to indicate a craftsman has spent the required period as an apprentice.
Famous quotes containing the words time and/or served:
“There may be always a time of innocence.
There is never a place.”
—Wallace Stevens (1879–1955)
“He has served me too well; by increasing my power he has stolen it away: he is now my subject only so long as he pleases.”
—Pierre Corneille (1606–1684)