condition mean min max 4 h after light 1426.368289 1376.065263 1476.671315 8 h after light 1702.5081774999999 1456.526938 1948.489417 12 h after light 1973.44077 1818.709246 2128.172294 4 h after dark 1989.3183445 1717.830401 2260.806288 8 h after dark 1293.3493895000001 1209.791395 1376.907384 12 h after dark 1290.178366 1290.178366 1290.178366