condition mean min max 4 h after light 402.122208 349.596447 454.647969 8 h after light 517.546344 447.937554 587.155134 12 h after light 629.525661 495.30898 763.742342 4 h after dark 721.423417 613.40357 829.443264 8 h after dark 579.871551 493.30898 666.434122 12 h after dark 718.078211 718.078211 718.078211