condition mean min max 4 h after light 767.7695 715.499 820.04 8 h after light 632.1735 616.411 647.936 12 h after light 643.4649999999999 615.054 671.876 4 h after dark 670.3673333333334 662.54 684.398 8 h after dark 862.09 817.546 884.598 12 h after dark 848.4449999999999 815.187 879.781