condition mean min max 4 h after light 430.22645 358.949107 501.503793 8 h after light 387.039329 345.332293 428.746365 12 h after light 505.807582 414.400701 597.214463 4 h after dark 547.4788195 494.828348 600.129291 8 h after dark 555.6280785 492.085304 619.170853 12 h after dark 545.443605 545.443605 545.443605