condition mean min max 4 h after light 841.2105495000001 814.313997 868.107102 8 h after light 1080.5197910000002 937.137471 1223.902111 12 h after light 1250.636368 1165.621963 1335.650773 4 h after dark 1248.6500065 1228.602978 1268.697035 8 h after dark 941.0945895 806.232507 1075.956672 12 h after dark 905.078437 905.078437 905.078437