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Julianna36308359oyge
Participant
September 16, 2025
Answered

Stopwatch Timer Expression

  • September 16, 2025
  • 1 reply
  • 191 views

I am looking to make a stopwatch timer in AfterEffects with the Slide Control. I want to display minutes, seconds, and milliseconds (00:00:00). I cannot find the correct source text for it.

 

This is what I currently have:

slider = Math.round(effect("Slider Control")("Slider"))

sec = slider%60
min = Math.floor(slider/60)

function addZero(n){ if (n<10) return "0" + n else return n }

addZero(min) + ":" + addZero(sec)

Correct answer Dan Ebberts

Try this:

slider = effect("Slider Control")("Slider").value;
function padZero(n){
  return (n < 10 ? "0" : "") + n;
}
min = Math.floor((slider%3600)/60);
sec = Math.floor(slider%60);
ms = slider.toFixed(2).substr(-2);
padZero(min) + ":" + padZero(sec) + ":" + ms

1 reply

Dan Ebberts
Community Expert
Dan EbbertsCommunity ExpertCorrect answer
Community Expert
September 16, 2025

Try this:

slider = effect("Slider Control")("Slider").value;
function padZero(n){
  return (n < 10 ? "0" : "") + n;
}
min = Math.floor((slider%3600)/60);
sec = Math.floor(slider%60);
ms = slider.toFixed(2).substr(-2);
padZero(min) + ":" + padZero(sec) + ":" + ms
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