Is it possible to restart on a weekly basis instead of daily? Can you please give me an example of the code if I wanted to restart on Sunday morning instead of everyday? Thank you in advance.

After looking at this plug-in's setup guide, this plug-in appears to be designed just to do daily restarts.  I did not see anything in the configuration that would allow it to be every 7 days.  With this said, I think the plug-in would have to be revamped or rewritten to accomodate what you are wanting.

Also I just noticed that this plug-in only provides a nifty countdown graphic on the players' screens and can shutdown your server.  It cannot actually restart the server.  This tells me that you would have to setup your server hostings options to restart.  Most server hosts do offer this in the control panel of your server. 

Thank you for reply ... bummer.  Would really love a weekly option.  We own the server so we have added a "goto start" feature in the batch file to auto-restart server when we used smooth restarter.  When we rented a server this plugin was great because mod hook times ate up the memory but now we have 64 GB RAM on our own box so daily restarts aren't needed anymore.  Oh well maybe they'll add it later.