condition mean min max 4 h after light 34.9469 34.1547 35.7391 8 h after light 11.1293 10.73 11.5286 12 h after light 5.28736 5.25278 5.32194 4 h after dark 5.66887 5.25765 6.08009 8 h after dark 12.5917 12.335 12.8484 12 h after dark 21.03605 21.0157 21.0564