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<h1>JavaScript setTime() Method</h1>
<hr />
<a href="jsref_obj_date.asp"><img class="navup" src="../images/up.gif" alt="Date Object Reference" border="0" /> Complete Date Object Reference</a>
<hr />
<h2>Definition and Usage</h2>
<p>The setTime() method is used to calculate a date and time by adding or
subtracting a specified number of milliseconds to/from midnight
January 1, 1970. </p>
<h2>Syntax</h2>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr>
<td>
<pre>dateObject.setTime(millisec)</pre>
</td>
</tr>
</table>
<br />
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<th align="left" valign="top" width="20%">Parameter</th>
<th align="left" valign="top" width="80%">Description</th>
</tr>
<tr>
<td valign="top">millisec</td>
<td valign="top">Required. A numeric value representing the
milliseconds since midnight January 1, 1970. Can be a negative number</td>
</tr>
</table>
<br />
<hr />
<h2>Tips and Notes</h2>
<p><b>Note:</b> This method is always used in conjunction with a Date object.</p>
<hr />
<h2>Example 1</h2>
<p>In this example we will add 77771564221 milliseconds to 1970/01/01 and
display the new date and time:</p>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr>
<td>
<pre><script type="text/javascript"></pre>
<pre>var d = new Date();
d.setTime(77771564221);
document.write(d);</pre>
<pre></script></pre>
</td>
</tr>
</table>
<p>
The output of the code above will be:</p>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr>
<td>
<pre>Mon Jun 19 05:12:44 UTC+0200 1972 </pre>
</td>
</tr>
</table>
<br />
<hr />
<h2>Example 2</h2>
<p>In this example we will subtract 77771564221 milliseconds from 1970/01/01 and
display the new date and time:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table1">
<tr>
<td>
<pre><script type="text/javascript"></pre>
<pre>var d = new Date();
d.setTime(-77771564221);
document.write(d);</pre>
<pre></script></pre>
</td>
</tr>
</table>
<p>
The output of the code above will be:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table2">
<tr>
<td>
<pre>Sat Jul 15 22:47:15 UTC+0200 1967</pre>
</td>
</tr>
</table>
<br />
<hr />
<h2>Try-It-Yourself Demos</h2>
<p><a target="_blank" href="tryit.asp@filename=tryjsref_settime">setTime()</a><br />
Use setTime() to add milliseconds to 1970/01/01 and display the new date and
time.</p>
<hr />
<a href="jsref_obj_date.asp"><img class="navup" src="../images/up.gif" alt="Date Object Reference" border="0" /> Complete Date Object Reference</a>
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