condition mean min max 3 h after light 9.50925 7.61176 12.273 6 h after light 13.47701 9.97293 16.8545 9 h after light 15.554333333333334 12.0063 21.9676 12 h after light 18.226775 11.6721 23.047 3 h after dark 24.312733333333334 23.3115 25.3069 6 h after dark 24.854033333333334 19.7528 29.5191 9 h after dark 18.1968 14.3293 24.5185 12 h after dark 12.9829 12.7451 13.2207