<html lang="en">
<head>
<title>Time Functions Example - The GNU C Library</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="The GNU C Library">
<meta name="generator" content="makeinfo 4.13">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Calendar-Time.html#Calendar-Time" title="Calendar Time">
<link rel="prev" href="Time-Zone-Functions.html#Time-Zone-Functions" title="Time Zone Functions">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<!--
This file documents the GNU C library.

This is Edition 0.12, last updated 2007-10-27,
of `The GNU C Library Reference Manual', for version
2.8 (Sourcery G++ Lite 2011.03-41).

Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002,
2003, 2007, 2008, 2010 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being ``Free Software Needs Free Documentation''
and ``GNU Lesser General Public License'', the Front-Cover texts being
``A GNU Manual'', and with the Back-Cover Texts as in (a) below.  A
copy of the license is included in the section entitled "GNU Free
Documentation License".

(a) The FSF's Back-Cover Text is: ``You have the freedom to
copy and modify this GNU manual.  Buying copies from the FSF
supports it in developing GNU and promoting software freedom.''-->
<meta http-equiv="Content-Style-Type" content="text/css">
<style type="text/css"><!--
  pre.display { font-family:inherit }
  pre.format  { font-family:inherit }
  pre.smalldisplay { font-family:inherit; font-size:smaller }
  pre.smallformat  { font-family:inherit; font-size:smaller }
  pre.smallexample { font-size:smaller }
  pre.smalllisp    { font-size:smaller }
  span.sc    { font-variant:small-caps }
  span.roman { font-family:serif; font-weight:normal; } 
  span.sansserif { font-family:sans-serif; font-weight:normal; } 
--></style>
<link rel="stylesheet" type="text/css" href="../cs.css">
</head>
<body>
<div class="node">
<a name="Time-Functions-Example"></a>
<p>
Previous:&nbsp;<a rel="previous" accesskey="p" href="Time-Zone-Functions.html#Time-Zone-Functions">Time Zone Functions</a>,
Up:&nbsp;<a rel="up" accesskey="u" href="Calendar-Time.html#Calendar-Time">Calendar Time</a>
<hr>
</div>

<h4 class="subsection">21.4.9 Time Functions Example</h4>

<p>Here is an example program showing the use of some of the calendar time
functions.

<pre class="smallexample">     #include &lt;time.h&gt;
     #include &lt;stdio.h&gt;
     
     #define SIZE 256
     
     int
     main (void)
     {
       char buffer[SIZE];
       time_t curtime;
       struct tm *loctime;
     
       /* <span class="roman">Get the current time.</span> */
       curtime = time (NULL);
     
       /* <span class="roman">Convert it to local time representation.</span> */
       loctime = localtime (&amp;curtime);
     
       /* <span class="roman">Print out the date and time in the standard format.</span> */
       fputs (asctime (loctime), stdout);
     
       /* <span class="roman">Print it out in a nice format.</span> */
       strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime);
       fputs (buffer, stdout);
       strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime);
       fputs (buffer, stdout);
     
       return 0;
     }
</pre>
   <p>It produces output like this:

<pre class="smallexample">     Wed Jul 31 13:02:36 1991
     Today is Wednesday, July 31.
     The time is 01:02 PM.
</pre>
   </body></html>