condition mean min max 4 h after light 655.3502129999999 572.387072 738.313354 8 h after light 666.2617565 639.955326 692.568187 12 h after light 819.5331705 705.226289 933.840052 4 h after dark 1034.173407 766.811788 1301.535026 8 h after dark 1177.9539129999998 810.693595 1545.214231 12 h after dark 650.361069 650.361069 650.361069