This mod adds a simple script to all of the main cities (Solitude, Windhelm, Whiterun, Markarth, Riften) gates to lock them from 10pm to 6am. The locks cannot be picked. This is to add use for mods that add alternate ways to enter cities such as Skyrim Sewers or to just add immersion.
CREDITS:
Bethesda for making such an awesome game.
EnaiSiaion and EpicCrab for helping me when I ran into scripting trouble.