Familiar with the f.lux app?  Here we walk through installation and configuration of the app on Windows.  If you’re satisfied with the 2700k setting available for both daytime and nightime using default settings, then no further changes need to be made.  For those interested in more aggressive settings like the 1900k Candle setting, you’ll need to select a location in f.lux that is nighttime when you intend on using your computer the most.