9 to 5

1976 March, advertisement, Popular Mechanics, page 44, By day, he′s a 9-to-5 man. By night, an explorer in a field that really interests him!

Keisha works a 9-to-5, picks up their son from the day care and then heads home to prepare dinner for the family.

[D]uring his heyday, Bill Rodgers emphatically stated, “No runner working 9 to 5 can beat me”, attesting that training for elite distance competition had become a full-time job in itself.

2010 January-February, Lou′s Clues: Getting to Work (editorial), Ancestry Magazine, page 6, And you might decide that our 9-to-5s today just aren′t so tough.

Stock markets crash, businesses go bankrupt, and 9-to-5s can disappear from layoffs and downsizing.