condition mean min max 4 h after light 583.2485125000001 309.977296 856.519729 8 h after light 97.2883945 52.03704 142.539749 12 h after light 116.6572925 48.395181 184.919404 4 h after dark 35.878403500000005 32.743585 39.013222 8 h after dark 48.233033000000006 22.405031 74.061035 12 h after dark 858.193051 858.193051 858.193051