condition mean min max 4 h after light 1353.3191235 1183.155134 1523.483113 8 h after light 1427.6048735 1311.377399 1543.832348 12 h after light 1317.5653710000001 1304.6445 1330.486242 4 h after dark 1458.614458 1238.693595 1678.535321 8 h after dark 1490.5861475000002 1327.031661 1654.140634 12 h after dark 1219.075991 1219.075991 1219.075991