Thinking about a smart timer for off-peak pump runs, worth it

Working nights I've just been running my pump on the stock mechanical timer, basically guessing at hours. Vegas power rates jump hard in the afternoon peak window and I'm already running long cycles because of the heat load on a 15k gallon pool. Seen guys on here mention smart timers that shift runtime to off-peak automatically. Anybody actually running one with a single speed pump, not variable speed, and seeing real savings on the bill or is it more hassle than it's worth for a setup this simple. Not trying to rebuild my whole pad, just want the pump running when power's cheaper without babysitting it every week.