condition mean min max 4 h after light 678.962826 541.232057 816.693595 8 h after light 664.085491 577.056887 751.114095 12 h after light 769.3346544999999 704.122738 834.546571 4 h after dark 695.850503 632.931228 758.769778 8 h after dark 866.9319115 783.20765 950.656173 12 h after dark 553.956817 553.956817 553.956817