I did a search in the expressions forum and found this countdown timer. Just create a comp 15 minute long. Press “cntl+alt+shift+T” to create a text layer. Copy the entire expression written below. Twirl open the text and “alt + click” the source text stop watch to enable expressions, then paste expression below into the box. Lastly, make sure the text is right justified.
rate = -1;
clockStart = 900;
function padZero(n){
if (n < 10) return "0" + n else return "" + n
}
clockTime = Math.max(clockStart + rate*(time - inPoint),0);
t = Math.floor(clockTime);
min = Math.floor((t%3600)/60);
sec = Math.floor(t%60);
min + ":" + padZero(sec)
Johnny Cuevas, Editor
ThinkCK
"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.