Definition from Wiktionary, the free dictionary
- Regularly scheduled work during daylight hours, especially 8AM to 4PM.
2006, Roberto Refinetti, Circadian physiology, volume 1, page 580:
- It is generally believed that when rotating shifts are necessary the rotation should move clockwise (that is, day shift first, then swing shift, then graveyard shift, then back to day shift, and so on)
- (regularly scheduled work during daylight): first shift