condition mean min max 4 h after light 8.310016666666666 7.51273 8.91225 8 h after light 7.302250000000001 2.2303 11.407 12 h after light 8.54486 5.28103 12.9383 4 h after dark 8.675523333333333 6.36522 11.3662 8 h after dark 9.2398 6.55269 11.78 12 h after dark 8.989923333333333 8.58922 9.25084