condition mean min max 4 h after light 741.8055435 730.196963 753.414124 8 h after light 630.735412 589.354352 672.116472 12 h after light 755.363402 605.936346 904.790458 4 h after dark 847.9417735 723.04931 972.834237 8 h after dark 690.0537635000001 565.99296 814.114567 12 h after dark 901.525591 901.525591 901.525591