condition mean min max 4 h after light 982.7 982.7 982.7 8 h after light 1143.35 935.7 1351.0 12 h after light 1355.5 1284.5 1426.5 4 h after dark 1014.85 768.2 1261.5 8 h after dark 716.0999999999999 512.8 919.4 12 h after dark 404.35 313.5 495.2