3.1.2. Hours of Operation. Publish airfield operating hours in the FLIP when less than 24 hours a day, 7 days a week. Note: MAJCOM/A3’s establish and publish airfield operating hours in supplements to this AFI.
220.127.116.11. All changes to airfield operating hours that exceed 96 hours (e.g., 4-day weekend) require MAJCOM/A3 approval.
18.104.22.168. A normal shift should be 8 hours and must not exceed 12 hours (not including time for shift changes) without the AOF/CC approval.