condition mean min max 4 h after light 675.832484 662.420894 689.244074 8 h after light 698.6008405 667.639479 729.562202 12 h after light 889.8142845 789.979887 989.648682 4 h after dark 919.1317495000001 827.515366 1010.748133 8 h after dark 1215.7722374999998 1099.30898 1332.235495 12 h after dark 952.145963 952.145963 952.145963