Awesome

html5timetracker

Try it live on http://unlayered.com/time/

Code is far from being OK. Please bare with me, I don't know what I had been doing half of the time, I'm still learning Javascript :D

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Needs Keith Wood's countdown jQuery plugin (https://github.com/kbwood/countdown) to work. Note that I had to change a line, more on that here: https://github.com/kbwood/countdown/issues/26