Get time in milliseconds

hi, i would like to be able to get the current time in milliseconds or less to create smooth custom animations using math. i've been struggling all day to find something that updates just as fast but in the end i can only get the animation to update each second, resulting in a choppy sequence.


I really need this too. I'm making a clock widget for a fictional time system with smaller divisions of time than seconds, and I can't make it work correctly due to the lack of millisecond implementation.