condition mean min max 4 h after light 651.9635 621.8349 711.586 8 h after light 296.5563 232.495 330.4518 12 h after light 290.2589 206.6622 421.7387 16 h after light 673.1306666666667 454.1856 1037.54 4 h after dark 640.2891666666667 598.9278 669.1164 8 h after dark 439.27493333333337 348.8368 538.3698