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:
“Like to the time o’ th’ year between the extremes
Of hot and cold, he was nor sad nor merry.”
—William Shakespeare (1564–1616)
“Oh how unhappy is the prince served by such men who are so easily corrupted.”
—François Rabelais (1494–1553)