condition mean min max 0 h after light 9.183045 8.98365 9.38244 2 h after light 5.366595 5.23858 5.49461 4 h after light 6.25626 6.17738 6.33514 8 h after light 7.2204 6.64673 7.79407 12 h after light 7.81748 7.67608 7.95888 2 h after dark 7.2481 6.90389 7.59231 4 h after dark 7.31747 7.28921 7.34573 8 h after dark 10.475249999999999 10.4062 10.5443 12 h after dark 9.384170000000001 8.44454 10.3238