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authorTobias Klauser <tklauser@distanz.ch>2008-01-27 11:37:44 +0100
committerTobias Klauser <tklauser@xenon.tklauser.home>2008-01-27 11:37:44 +0100
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+<TITLE>strftime</TITLE>
+<body bgcolor="#ffffcc">
+<hr>
+<pre>
+
+
+
+<h3>STRFTIME(3) Linux Programmer's Manual STRFTIME(3)
+</h3>
+
+<h3>NAME
+</h3> strftime - format date and time
+
+<h3>SYNOPSIS
+</h3> #include &lt;time.h&gt;
+
+ size_t strftime(char *s, size_t max, const char *format,
+ const struct tm *tm);
+
+<h3>DESCRIPTION
+</h3> The strftime() function formats the broken-down time tm
+ according to the format specification format and places
+ the result in the character array s of size max.
+
+ Ordinary characters placed in the format string are copied
+ to s without conversion. Conversion specifiers are intro-
+ duced by a `%' character, and are replaced in s as fol-
+ lows:
+
+ %a The abbreviated weekday name according to the cur-
+ rent locale.
+
+ %A The full weekday name according to the current
+ locale.
+
+ %b The abbreviated month name according to the current
+ locale.
+
+ %B The full month name according to the current
+ locale.
+
+ %c The preferred date and time representation for the
+ current locale.
+
+ %d The day of the month as a decimal number (range 0
+ to 31).
+
+ %H The hour as a decimal number using a 24-hour clock
+ (range 00 to 23).
+
+ %I The hour as a decimal number using a 12-hour clock
+ (range 01 to 12).
+
+ %j The day of the year as a decimal number (range 001
+ to 366).
+
+ %m The month as a decimal number (range 10 to 12).
+
+ %M The minute as a decimal number.
+
+ %p Either `am' or `pm' according to the given time
+ value, or the corresponding strings for the current
+ locale.
+
+
+
+
+<h3>GNU July 2, 1993 1
+</h3>
+
+
+
+
+<h3>STRFTIME(3) Linux Programmer's Manual STRFTIME(3)
+</h3>
+
+ %S The second as a decimal number.
+
+ %U The week number of the current year as a decimal
+ number, starting with the first Sunday as the first
+ day of the first week.
+
+ %W The week number of the current year as a decimal
+ number, starting with the first Monday as the first
+ day of the first week.
+
+ %w The day of the week as a decimal, Sunday being 0.
+
+ %x The preferred date representation for the current
+ locale without the time.
+
+ %X The preferred time representation for the current
+ locale without the date.
+
+ %y The year as a decimal number without a century
+ (range 00 to 99).
+
+ %Y The year as a decimal number including the century.
+
+ %Z The time zone or name or abbreviation.
+
+ %% A literal `%' character.
+
+ The broken-down time structure tm is defined in &lt;time.h&gt;
+ as follows:
+
+ struct tm
+ {
+ int tm_sec; /* seconds */
+ int tm_min; /* minutes */
+ int tm_hour; /* hours */
+ int tm_mday; /* day of the month */
+ int tm_mon; /* month */
+ int tm_year; /* year */
+ int tm_wday; /* day of the week */
+ int tm_yday; /* day in the year */
+ int tm_isdst; /* daylight saving time */
+ };
+
+ The members of the tm structure are:
+
+ tm_sec The number of seconds after the minute, normally in
+ the range 0 to 59, but can be up to 61 to allow for
+ leap seconds.
+
+ tm_min The number of minutes after the hour, in the range
+ 0 to 59.
+
+ tm_hour
+ The number of hours past midnight, in the range 0
+
+
+
+<h3>GNU July 2, 1993 2
+</h3>
+
+
+
+
+<h3>STRFTIME(3) Linux Programmer's Manual STRFTIME(3)
+</h3>
+
+ to 23.
+
+ tm_mday
+ The day of the month, in the range 1 to 31.
+
+ tm_mon The number of months since January, in the range 0
+ to 11.
+
+ tm_year
+ The number of years since 1900.
+
+ tm_wday
+ The number of days since Sunday, in the range 0 to
+ 6.
+
+ tm_yday
+ The number of days since January 1, in the range 0
+ to 365.
+
+ tm_isdst
+ A flag that indicates whether daylight saving time
+ is in effect at the time described. The value is
+ positive if daylight saving time is in effect, zero
+ if it is not, and negative if the information is
+ not available.
+
+<h3>RETURN VALUE
+</h3> The strftime() function returns the number of characters
+ placed in the array s, not including the terminating NULL
+ character. If the value equals max, it means that the
+ array was too small.
+
+<h3>CONFORMING TO
+</h3> SVID 3, POSIX, BSD 4.3, ISO 9899
+
+</pre>
+<hr>
+<h3>SEE ALSO
+</h3><p>
+<a href=date.htm>date</a>,
+<a href=time.htm>time</a>,
+<a href=ctime.htm>ctime</a>,
+<a href=setlocale.htm>setlocale</a>,
+<a href=sprintf.htm>sprintf</a>,
+<pre>
+
+<h3>NOTES
+</h3> The function supports only those locales specified in
+ locale(7)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+<h3>GNU July 2, 1993 3
+</h3>
+
+ </pre>
+<P>
+<hr>
+<p>
+<center>
+<table border=2 width=80%>
+<tr align=center>
+<td width=25%>
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+</table>
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+<p>
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+
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