• Adobe After Effects Expressions

  Slow Motion Stopwatch

  Posted by Jordan Ingram on September 2, 2010 at 3:38 pm

  Hello Creative beef enthusiasts!

  So I’m having a bit of an issue with an expression I’m using…

  Basically what it does is take your text layer and makes it into a countdown timer counting down from 20 minutes to zero. It’s structured as “Minutes, Seconds, Milliseconds” or “00:00.00”.

  So it’s working just fine. The issue that I’m having is that I’m dealing with 60p footage pulled down
  to 23.98. So it’s a slow motion shot which means that the expression above creates a timer that’s in
  real-time and is too fast. I still want it to count down from 20 minutes to zero, just at half speed.

  What do I need to do to this expression so that the text layer will count down accurately?

  t = 1200; // start time in seconds

  d = new Date((t - time)*1000);
min = d.getMinutes();
sec = d.getSeconds();
ms = d.getMilliseconds();
m1 = Math.floor(min/10);
m2 = min%10;
s1 = Math.floor(sec/10);
s2 = sec%10;
ms1 = Math.floor(ms/100);
ms2 = Math.floor(ms%100/10);
ms3 = ms%10;
"" + m1 + m2 + ":" + s1 + s2 + "." + ms1 + ms2 +ms3

  Jordan Ingram replied 15 years, 8 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  September 2, 2010 at 4:39 pm

  Try changing the second line to this:

  d = new Date((t – time*23.98/60)*1000);

  Dan
• 

  Jordan Ingram

  September 2, 2010 at 5:15 pm

  Thanks so much Dan!

  Works perfectly!

  – Jordan

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