Now for Forge 1.18!

Adds timestamps to all chat messages (including achievements, system, etc.)

 

Check the config to customize the position, format or color. Also has an option to generate a different color per player, to allow for easier distinction between messages.

This mod is client-side only, so do not use it on the server-side.

I will not be supporting/creating this mod for older Minecraft versions or modloaders besides Forge.