condition mean min max 4 h after light 360.2 360.2 360.2 8 h after light 400.8 301.1 500.5 12 h after light 480.4 431.7 529.1 4 h after dark 373.8 366.1 381.5 8 h after dark 410.25 345.3 475.2 12 h after dark 450.7 403.5 497.9