condition mean min max 4 h after light 524.643 493.018 556.268 8 h after light 48.93235 47.7684 50.0963 12 h after light 6.7803450000000005 6.69357 6.86712 4 h after dark 161.32999999999998 158.101 164.559 8 h after dark 525.8705 496.614 555.127 12 h after dark 782.1875 762.813 801.562