condition mean min max 4 h after light 2268.5 2268.5 2268.5 8 h after light 2439.05 2324.0 2554.1 12 h after light 3017.45 2512.0 3522.9 4 h after dark 2884.25 2353.1 3415.4 8 h after dark 3029.6 2993.1 3066.1 12 h after dark 2787.45 2430.6 3144.3