condition mean min max 4 h after light 11.1098885 10.414734 11.805043 8 h after light 11.8842435 10.463137 13.30535 12 h after light 11.651256 10.663258 12.639254 4 h after dark 12.038424 11.93042 12.146428 8 h after dark 12.994221 12.213874 13.774568 12 h after dark 13.291517 13.291517 13.291517