condition mean min max 4 h after light 604.307819 517.649127 690.966511 8 h after light 729.6380105000001 678.47022 780.805801 12 h after light 869.9255390000001 790.465175 949.385903 4 h after dark 935.81797 843.718457 1027.917483 8 h after dark 776.3961995 504.598804 1048.193595 12 h after dark 832.689029 832.689029 832.689029