@Hogg 

Hi, you can select the day of the week and the time to set up the schedule, below is the related instruction.

https://www.tp-link.com/support/faq/947/

Have a good day.

Thanks @Stella.Q, day of week is not the same as date. There a lot of uses where people may want to set an actual date schedule, and it seems a little last century to claim ability to set a schedule and omit ability to simply set a specific date. Eg: we just want to leave device off on public holidays. A few days a year, but need to manually adjust because developers seem too narrow minded to include a feature included in every other app that claims to have scheduling hat has been released this century.

@Hogg Thank you for your feedback, we will feedback to our R&D department and then they will work on and evaluate the feasibility.