condition mean min max 4 h after light 3.715185 3.13817 4.2922 8 h after light 1.850715 1.37271 2.32872 12 h after light 3.49551 2.52032 4.4707 4 h after dark 3.5889949999999997 3.27038 3.90761 8 h after dark 7.16841 6.30815 8.02867 12 h after dark 5.12097 4.72324 5.5187