condition mean min max 4 h after light 11.950662 11.579343 12.321981 8 h after light 12.293934 12.032166 12.555702 12 h after light 12.22009 11.658212 12.781968 4 h after dark 12.933936 11.479136 14.388736 8 h after dark 13.8780035 13.554902 14.201105 12 h after dark 12.434167 12.434167 12.434167