If you are asking if there is a command to tell the SX80 to reboot at a future time, no there is not. There is a reboot command of course - this API doc has all the commands (CE code):
http://www.cisco.com/c/dam/en/us/td/docs/telepresence/endpoint/ce80/sx80-api-reference-guide-ce80.pdf
That said - you can create a configuration template in TMS and schedule that, so that would probably be your best solution, or just run a script on some other server at the desired time.
