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:
“It takes a lot of time to be a genius, you have to sit around so much doing nothing, really doing nothing.”
—Gertrude Stein (1874–1946)
“I have served him, and the man commands
Like a full soldier.”
—William Shakespeare (1564–1616)