<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Convert Unix timestamp to Julian Day</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.juliantojd.html">JulianToJD</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.datetime.html">Date/Time</a></div> <div class="up"><a href="ref.calendar.html">Calendar Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.unixtojd" class="refentry"> <div class="refnamediv"> <h1 class="refname">unixtojd</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">unixtojd</span> — <span class="dc-title">Convert Unix timestamp to Julian Day</span></p> </div> <div class="refsect1 description" id="refsect1-function.unixtojd-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>unixtojd</strong></span> ([ <span class="methodparam"><span class="type">int</span> <code class="parameter">$timestamp</code><span class="initializer"> = time()</span></span> ] )</div> <p class="para rdfs-comment"> Return the Julian Day for a Unix <em><code class="parameter">timestamp</code></em> (seconds since 1.1.1970), or for the current day if no <em><code class="parameter">timestamp</code></em> is given. </p> </div> <div class="refsect1 parameters" id="refsect1-function.unixtojd-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">timestamp</code></em></span> <dd> <p class="para"> A unix timestamp to convert. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.unixtojd-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> A julian day number as integer. </p> </div> <div class="refsect1 seealso" id="refsect1-function.unixtojd-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.jdtounix.html" class="function" rel="rdfs-seeAlso">jdtounix()</a> - Convert Julian Day to Unix timestamp</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.juliantojd.html">JulianToJD</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.datetime.html">Date/Time</a></div> <div class="up"><a href="ref.calendar.html">Calendar Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>