I answered your prior thread with an inexpensive solution, but you must not have read it.
You can use an inexpensive outlet timer, like this Woods timer form $8 at Amazon:
https://www.amazon.com/gp/product/B006LYHEEY/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
Plug the timer into the outlet and set for auto, then program the times for misting.
Remove the Mistking timer and plug the pump cord directly into the power transformer, then plug the power transformer into the outlet timer. If you plugged the Mistking transformer directly into the outlet [after removing the Mistking timer] it would run continuously, so now your outlet timer will control it. So any outlet timer will work.
Programmable digital timers can also be found on eBay for under $10, shipped free.
Remember that ANY outlet timer would work in the above manner. If you do not have a timer right now, after you remove the Mistking timer [and plug the pump cord into the transformer cord] you can mist manually just by plugging the transformer into your outlet and allowing the pump to run as long as you want, whenever you want, since it will stay running.