condition mean min max 4 h after light 1139.4811935 960.649582 1318.312805 8 h after light 1318.0007575 1220.698483 1415.303032 12 h after light 1442.267464 1429.76441 1454.770518 4 h after dark 1331.322038 1148.948913 1513.695163 8 h after dark 1361.2750270000001 1304.525787 1418.024267 12 h after dark 1380.686257 1380.686257 1380.686257