The Watering Restrictions allow for a single time range. It turns out that in my area watering is only allowed between 4-10 am and 7-10 pm. With the limititation of a single time range, the best I can do is to restrict watering between 10 am and 7 pm.
Also, of the 8 zones here, only 4 of them have spray nozzles. The drip watering zones have no watering time restrictions required but the app’s restrictions apply to both types of zones. It should be possible to specify these restriction on a zone by zone basis.