The easiest way to accomplish this is by using the EventSentry application scheduler & the Windows "Shutdown.exe" application.
Application Scheduler is a feature that can be enabled under "System Health". You can schedule to run any command-line application from within EventSentry for custom system monitoring
C:\Windows\System32\shutdown.exe /r /f /d p:0:0 /c "Weekly Shutdown"
/r is used to restart the server after shutdown, /f is to force close applications, /d p:0:0 is for the reason Other (Planned) and /c is a comment on the reason for the restart or shutdown.