Useful for timing? Nobody's gonna use this!
~Bad~
No sound
No animation
No entertainment
No interactivity
~Good~
Useful
Now, I know there may be some people who would want to use it as a stopwatch, but there are better, fancier ones out there one the internet. Maybe add audio, animation, the ability to switch between minutes and seconds, more features, or SOMETHING.
You said you didn't know anything about actionscript, so, if programming isn't your game, why not try animating? It's the least you could do to improve.
If people wanted to use a stopwatch, they aren't going to go online, go to newgrounds, find this submission, and click play, only to find that it doesn't measure in minutes, because stopwatches HAVE been invented.