condition mean min max 4 h after light 1707.7810255 1505.72487 1909.837181 8 h after light 2553.6861145000003 2238.461166 2868.911063 12 h after light 1726.979591 1414.697619 2039.261563 4 h after dark 1289.3719425 881.417482 1697.326403 8 h after dark 803.458488 575.816552 1031.100424 12 h after dark 944.851505 944.851505 944.851505