condition mean min max 4 h after light 758.829374 758.521744 759.137004 8 h after light 920.487483 818.585071 1022.389895 12 h after light 907.0186565 835.216403 978.82091 4 h after dark 792.3018315 667.001288 917.602375 8 h after dark 507.4967705 441.755524 573.238017 12 h after dark 652.152016 652.152016 652.152016