condition mean min max 4 h after light 1700.2173205 1318.510277 2081.924364 8 h after light 1788.1109305 848.30898 2727.912881 12 h after light 1665.110419 1361.752195 1968.468643 4 h after dark 3016.158629 2332.257836 3700.059422 8 h after dark 2947.2245359999997 2422.487806 3471.961266 12 h after dark 2574.30898 2574.30898 2574.30898