It wasn't Hunter, or any major mfr who introduced the "excluded day" option. I received a mailing one winter about a new brand of controller, that had this feature. "Who on earth needs that?" I thought. And of course the following year had some towns going to a Never Water on Monday scheduling philosophy, which combined with odd-even scheduling to end the useful life of all those old motorized controllers and their 14-day calendar wheels.....and of course, a day not selected as a watering day, is a different thing than a day selected as a non-watering day....
haha! That's Hunter for ya.