Download
Set an alarm. Growl and system sound when countdown reaches zero.

Usage

> alarm 8:30 Take cookies out of the oven
time must be first. Can be ‘h:m:s’ ‘m:s’ or ‘s’. Remainder of query displayed in the growl notification
Notes
In the above example, the alarm does not go off at 8:30, but in 8 minutes and 30 seconds.
Cannot cancel an existing alarm. Cannot view time remaining.
You can download Alfred App for free here: http://www.alfredapp.com/.
To kick things up a notch with extensions and more, get the Powerpack for Alfred.
Thanks for the extension. Very useful. Now if we could only add the features to cancel and view time remaining. Guess I’m a bit too needy.
Is there anyway to modify this so it could be used as an interval timer? For example for HIIT or Interval training for workouts?
Example. Set it for 20 sec. and it beeps every twenty seconds. or set it for 60 seconds and it beeps every 60 seconds.
Link: http://www.bodyrock.tv/2010/12/22/interval-timer/
Maybe a completely separate extension? I’m not a programmer so I can’t tell if this would be difficult or not.
Something like that would take a whole new approach – the current code doesn’t allow for this sort of functionality. And unfortunately, I’m not terribly familiar with the kind of code it would require.