Here's a link to a video tutorial that demonstrates how to create a countdown timer, with seconds and minutes using 3D text. It could easily be extended with hours if you want to go really crazy
http://www.youtube.com/watch?v=aXyEgqU1q1w
For video tutorials on programming in Alice 2.2 check out my YouTube channel
http://www.youtube.com/user/drdave785
Also check out my Programming in Alice blog at
http://programminginalice.com