condition mean min max 3 h after light 738.524 702.23 769.691 6 h after light 708.754 669.914 784.574 9 h after light 642.646 630.125 654.65 12 h after light 635.7429999999999 493.744 846.458 3 h after dark 793.8013333333333 726.054 890.309 6 h after dark 903.9473333333333 867.892 940.429 9 h after dark 961.8986666666667 881.074 1022.44 12 h after dark 956.0315 930.589 981.474