How do I do a Timer with countdown?

I am beginner in Construct2. I want to make something like this:

When i touch a sprite the countdown will start from eg." to countdown from 01:00 to 00:00".

Please help!

Have you looked at the manual at all ?

I've looked to the beginner tutorial. I read a tutorial here: But no success.

The tutorial has this name: Timer and countdown by lolprohacker

Found.