condition mean min max 4 h after light 809.3313015 616.649286 1002.013317 8 h after light 857.3472565 720.187916 994.506597 12 h after light 824.404791 776.393853 872.415729 4 h after dark 783.3561315 697.582616 869.129647 8 h after dark 804.2082525000001 740.001288 868.415217 12 h after dark 755.854449 755.854449 755.854449