condition mean min max 4 h after light 267.476168 167.616974 367.335362 8 h after light 287.7705185 271.30898 304.232057 12 h after light 310.286106 279.109386 341.462826 4 h after dark 210.3471315 101.764546 318.929717 8 h after dark 224.193595 120.847441 327.539749 12 h after dark 247.5899 247.5899 247.5899