condition mean min max 0 h after light 6.77851 6.59653 6.96049 2 h after light 4.42257 3.63542 5.20972 4 h after light 5.927110000000001 4.78185 7.07237 8 h after light 5.39612 5.28373 5.50851 12 h after light 5.58976 5.02523 6.15429 2 h after dark 5.96439 5.92655 6.00223 4 h after dark 7.221030000000001 7.18034 7.26172 8 h after dark 12.49435 11.3085 13.6802 12 h after dark 8.11105 7.36644 8.85566