condition mean min max 4 h after light 1596.6053555 1150.799668 2042.411043 8 h after light 597.9820895 417.569263 778.394916 12 h after light 473.751992 424.819749 522.684235 4 h after dark 806.164855 438.98326 1173.34645 8 h after dark 1363.9422144999999 1135.881061 1592.003368 12 h after dark 2401.008027 2401.008027 2401.008027