Simple Javascript timer with system date
<p>I want to make a javascript timer for a countdown of 7 days since it is first run.</p>

<p>Here is the scenario:</p>

<ol>
<li>The html file will given to 100 students </li>
<li>So the timer will start whenever one opens the html file</li>
<li>If the user restarts the computer the time will not affect</li>
</ol>

<p>Dont know how its done..</p>

<p><a href="https://stackoverflow.com/questions/20618355/the-simplest-possible-javascript-countdown-timer">The simplest possible JavaScript countdown timer?</a></p>