The cycle goes, open the server and backup up to 1st save, wait 30 min, backup to 2nd save, 30 min, backup to 3rd save, 30 min, backup to 4th save, 30 min, restart and backup to 1st save. So the entire cycle is 2 hours. it also alerts players to whats happening at each event.
The download-- http://www.mediafire...toRestarter.zip
Just put the .bat and .vbs files in the file with your server in it, double click the RUN.bat file and it takes care of itself.
Make sure the server jar file, yes ONLY a jar file, is named server.jar. to make it a different name, you have to edit the RUN.bat file, go to the line saying java -Xmx1024M -Xms1024M -jar server.jar nogui., and change the name between -jar and nogui
Make the name of your world is just 'world'.
This is for vanilla and forge servers, not web hosted, not bukkit, vanilla and forge.
You may want to redownload this every month or so, because I update it very regularly.