Here is the digital mod for automatic night mode/day mode - complete with a control panel for setting the time of each.
YOU MUST HAVE .NET 2.0 FRAMEWORK ON YOUR PC (Windows update does this automatically).
When you set the time, it checks every minute and toggles night mode as appropriate. If you install this and set the time, if you try to change to day mode at night, it will allow you to do so until the timer hits (<1min), then it will change it back.
Changing the time in the digimod will immediately (<1 min) change the times it works off of, but if you want it to save those times on reboot, click on the save settings button.
http://www.stylingfx.com/streetdeck/gamma.zip
Source:
http://www.stylingfx.com/streetdeck/gammasource.zip
Consider it GPLed - all I ask is that if you modify it (and it's cool), that you share it with the rest of us
