@Riley_S thank you. I went to Me > Settings, changed the time zone to ESTEDT. Then I went and rebooted the HS300. Now, when I go to that device's Device Info, it is showing the EST5EDT time zone and...

I just purchased the Kasa HS300 specifically for the scheduling capability. I set it up and it missed it's first scheduled task. Upon investigation, I've found that the HS300 is set to the wrong time...