How To Configure DayNight Cycle

To get your day/night cycle configured you will want to make sure your server is fully stopped.
Once that is done head into your FTP client and go into the admin folder. ( FTP )
Open the serverDZ.cfg file in your favorite text editor and look for the

serverTimeAcceleration = 1;// Accelerated Time - The numerical value being a multiplier (0.1-64). Thus, in case it is set to 24, time would move 24 times faster than normal. An entire day would pass in one hour

serverNightTimeAcceleration = 1;// Accelerated Nigh Time - The numerical value being a multiplier (0.1-64) and also multiplied by serverTimeAcceleration value.

Set those to your desired values and save the document back to the FTP client.
Check the skip save config option on the panel and boot your server back up. (the skip save config option will prevent your server from overwriting your file during the restart)