From what I can see Time of Day seems to just be a visual sky system that simulates the time of day. UniStorm is a Dynamic Day and Night Weather System that is literally a living breathing virtual environment system. UniStorm's Main Features: * All 4 seasons (Spring, Summer, Fall, and Winter) with adjustable weather odds for each season. * 14 weather types that are all randomly generated; the strength and length of storms are completely dynamic thanks to UniStorm's powerful weather generating algorithm. * Seasonal weather (Snow for Winter, Falling Leaves for Fall, Summer Thunder Storms, ect) * Every component and color of the sky is adjustable from within UniStorm's custom Editor. * Realistic time of day simulation * Realistic atmospheric scattering. * Powerful in-game time keeping system for in-game events or controlling AI, similar to Skyrim (tracks Minutes, Hours, Days, Months, and Years) All these can be accessed using custom scripts, we included an example. * Accurate moon phase system. * Temperature system generated each day and for each season to control certain weather components making the system truly dynamic. * Powerful easy to use Custom Editor. These are just a fraction of what you get with UniStorm. The possibilities with this system are truly endless. Here's a video demonstrating UniStorm's weather, time of day, and in-game time keeping system.