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	<title>chys&#039;s random notes &#187; Unix</title>
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		<title>Unix time to be 1234567890 Friday</title>
		<link>http://en.chys.info/2009/02/unix-time-to-be-1234567890-friday/</link>
		<comments>http://en.chys.info/2009/02/unix-time-to-be-1234567890-friday/#comments</comments>
		<pubDate>Mon, 09 Feb 2009 05:41:53 +0000</pubDate>
		<dc:creator>chys</dc:creator>
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		<category><![CDATA[time]]></category>
		<category><![CDATA[Unix]]></category>

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		<description><![CDATA[The Unix time is going to be 1234567890 this Friday or Saturday, depending on your timezone. In UTC (GMT), the time is Fri Feb 13 23:31:30 2009. This is a time of celebration for geeks! For most people in the Western Hemisphere, this time falls on a Friday the 13th. We have three Fridays the [...]<hr/>
Related posts:<ol>
<li><a href='http://en.chys.info/2010/10/man-3-sleep/' rel='bookmark' title='man 3 sleep'>man 3 sleep</a></li>
</ol>]]></description>
			<content:encoded><![CDATA[<p>The Unix time is going to be 1234567890 this Friday or Saturday, depending on your timezone. In UTC (GMT), the time is Fri Feb 13 23:31:30 2009. This is a time of celebration for geeks!</p>
<p>For most people in the Western Hemisphere, this time falls on a <a href="http://en.wikipedia.org/wiki/Friday_the_13th">Friday the 13th</a>. We have three Fridays the 13th this year&#8230;</p>
<p>For people in the Eastern Hemisphere, it falls on this year&#8217;s St. Valentine&#8217;s Day.</p>
<p>The <a href="http://en.wikipedia.org/wiki/Unix_time">Unix time</a>, or POSIX time, equals the number of seconds elapsed since the &#8216;Unix epoch&#8217; (Jan 1 00:00:00 1970 UTC), ignoring leap seconds. The type <code><a href="http://en.wikipedia.org/wiki/Time_t">time_t</a></code> in all Unices and Unix-likes, and many non-Unix systems including Microsoft Windows, stores Unix time.</p>
<p>Certainly our systems will not have any timing problem this Friday the 13th. We&#8217;re really going to have problems at <a href="http://en.wikipedia.org/wiki/Year_2038_problem">Tue Jan 19 03:14:08 2038</a>, when the Unix time overflows 32-bit signed integer. Hopefully nobody will still be using 32-bit systems. If represented in 64-bit signed integer, Unix time won&#8217;t overflow in 292.5 <del datetime="2009-02-09T05:56:05+00:00">million</del>billion years.</p>
<hr/><p>Related posts:<ol>
<li><a href='http://en.chys.info/2010/10/man-3-sleep/' rel='bookmark' title='man 3 sleep'>man 3 sleep</a></li>
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