condition mean min max 4 h after light 2509.8 2509.8 2509.8 8 h after light 2606.4 2462.0 2750.8 12 h after light 3013.7 2573.0 3454.4 4 h after dark 2914.25 2470.9 3357.6 8 h after dark 2494.85 2435.6 2554.1 12 h after dark 2368.3 2338.1 2398.5