condition mean min max 4 h after light 486.510877 471.174313 501.847441 8 h after light 577.0022015 506.901134 647.103269 12 h after light 563.1610025 563.120231 563.201774 4 h after dark 503.33556450000003 460.563554 546.107575 8 h after dark 489.134823 484.782308 493.487338 12 h after dark 468.718708 468.718708 468.718708