condition mean min max 3 h after light 2038.53 1748.93 2533.8 6 h after light 2864.19 2337.39 3862.15 9 h after light 2685.08 2035.08 3058.32 12 h after light 2117.5075 1594.28 2448.28 3 h after dark 1554.28 1394.06 1641.45 6 h after dark 2524.2766666666666 2013.88 3076.32 9 h after dark 3290.03 2906.36 3672.42 12 h after dark 3352.05 3195.18 3508.92