condition mean min max 4 h after light 3.00375 2.48041 3.52709 8 h after light 5.012535 4.78586 5.23921 12 h after light 6.275155 6.18006 6.37025 4 h after dark 7.143675 7.09054 7.19681 8 h after dark 6.618545 6.36707 6.87002 12 h after dark 5.199294999999999 5.15788 5.24071