condition mean min max 4 h after light 4.89351 4.78274 5.00428 8 h after light 5.8750599999999995 5.87027 5.87985 12 h after light 8.00806 7.55556 8.46056 4 h after dark 9.52486 9.18538 9.86434 8 h after dark 8.384815 8.19669 8.57294 12 h after dark 7.29771 6.92992 7.6655