I want to share my game time setup! I have experienced a lot to figure out how to make a game time with the format 00m:00s:00ms! I have tried with Wait and Convert Seconds To String, but it didn't work as I want. I got a tip using Float Interpolate and finally I got a solution. With my solution, you can have the millisecond to count to 1000 in 1 second. or 100, or 10.
Here is the file! Hope it can be useful for someone!