condition mean min max 4 h after light 10.68485 10.4568 10.9129 8 h after light 11.46965 10.9247 12.0146 12 h after light 14.22755 12.7941 15.661 4 h after dark 17.5377 13.6298 21.4627 8 h after dark 14.848133333333333 11.7236 17.2583 12 h after dark 14.235566666666667 11.2285 16.8024