condition mean min max 4 h after light 5.954400000000001 3.79542 8.18486 8 h after light 3.0451246666666667 0.510874 4.33256 12 h after light 3.27547 2.31734 5.15231 4 h after dark 6.290603333333333 3.61033 8.51812 8 h after dark 6.572626666666666 4.3118 7.9799 12 h after dark 6.50323 5.83656 7.80748