usr/share/man/cat3/strftime.0



STRFTIME(3)         UNIX Programmer's Manual          STRFTIME(3)


N\bNA\bAM\bME\bE
     strftime - format date and time

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
     #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<s\bsy\bys\bs/\b/t\bty\byp\bpe\bes\bs.\b.h\bh>\b>
     #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<t\bti\bim\bme\be.\b.h\bh>\b>
     #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<s\bst\btr\bri\bin\bng\bg.\b.h\bh>\b>

     s\bsi\biz\bze\be_\b_t\bt
     s\bst\btr\brf\bft\bti\bim\bme\be(\b(c\bch\bha\bar\br *\b*s\bs,\b, s\bsi\biz\bze\be_\b_t\bt m\bma\bax\bxs\bsi\biz\bze\be,\b, c\bco\bon\bns\bst\bt c\bch\bha\bar\br *\b*f\bfo\bor\brm\bma\bat\bt,\b,
          c\bco\bon\bns\bst\bt s\bst\btr\bru\buc\bct\bt t\btm\bm *\b*t\bti\bim\bme\bep\bpt\btr\br)\b);\b;

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
     The _\bs_\bt_\br_\bf_\bt_\bi_\bm_\be function formats the information from _\bt_\bi_\bm_\be_\bp_\bt_\br
     into the buffer _\bb_\bu_\bf according to the string pointed to by
     _\bf_\bo_\br_\bm_\ba_\bt.

     The _\bf_\bo_\br_\bm_\ba_\bt string consists of zero or more conversion
     specifications and ordinary characters.  All ordinary char-
     acters are copied directly into the buffer.  A conversion
     specification consists of a percent sign (``%'') and one
     other character.

     No more than _\bm_\ba_\bx_\bs_\bi_\bz_\be characters will be placed into the
     array.  If the total number of resulting characters, includ-
     ing the terminating null character, is not more than _\bm_\ba_\bx_\b-
     _\bs_\bi_\bz_\be, _\bs_\bt_\br_\bf_\bt_\bi_\bm_\be returns the number of characters in the
     array, not counting the terminating null.  Otherwise, zero
     is returned.

     Each conversion specification is replaced by the characters
     as follows which are then copied into the buffer.

     %\b%A\bA   is replaced by the full weekday name.

     %\b%a\ba   is replaced by the abbreviated weekday name, where the
          abbreviation is the first three characters.

     %\b%B\bB   is replaced by the full month name.

     %\b%b\bb o\bor\br %\b%h\bh
          is replaced by the abbreviated month name, where the
          abbreviation is the first three characters.

     %\b%C\bC   is equivalent to ``%a %b %e %H:%M:%S %Y'' (the format
          produced by _\ba_\bs_\bc_\bt_\bi_\bm_\be(3).

     %\b%c\bc   is equivalent to ``%m/%d/%y''.

     %\b%D\bD   is replaced by the date in the format ``mm/dd/yy''.

     %\b%d\bd   is replaced by the day of the month as a decimal number


Printed 7/27/90                1Q                               1


STRFTIME(3)         UNIX Programmer's Manual          STRFTIME(3)


          (01-31).

     %\b%e\be   is replaced by the day of month as a decimal number
          (1-31); single digits are preceded by a blank.

     %\b%H\bH   is replaced by the hour (24-hour clock) as a decimal
          number (00-23).

     %\b%I\bI   is replaced by the hour (12-hour clock) as a decimal
          number (01-12).

     %\b%j\bj   is replaced by the day of the year as a decimal number
          (001-366).

     %\b%k\bk   is replaced by the hour (24-hour clock) as a decimal
          number (0-23); single digits are preceded by a blank.

     %\b%l\bl   is replaced by the hour (12-hour clock) as a decimal
          number (01-12); single digits are preceded by a blank.

     %\b%M\bM   is replaced by the minute as a decimal number (00-59).

     %\b%m\bm   is replaced by the month as a decimal number (01-12).

     %\b%n\bn   is replaced by a newline.

     %\b%p\bp   is replaced by either ``AM'' or ``PM'' as appropriate.

     %\b%R\bR   is equivalent to ``%H:%M''.

     %\b%r\br   is equivalent to ``%I:%M:%S %p''.

     %\b%t\bt   is replaced by a tab.

     %\b%S\bS   is replaced by the second as a decimal number (00-60).

     %\b%T\bT o\bor\br %\b%X\bX
          is equivalent to ``%H:%M:%S''.

     %\b%U\bU   is replaced by the week number of the year (Sunday as
          the first day of the week) as a decimal number (00-53).

     %\b%W\bW   is replaced by the week number of the year (Monday as
          the first day of the week) as a decimal number (00-53).

     %\b%w\bw   is replaced by the weekday (Sunday as the first day of
          the week) as a decimal number (0-6).

     %\b%x\bx   is equivalent to ``%m/%d/%y %H:%M:%S''.

     %\b%Y\bY   is replaced by the year with century as a decimal
          number.


Printed 7/27/90                2Q                               2


STRFTIME(3)         UNIX Programmer's Manual          STRFTIME(3)


     %\b%y\by   is replaced by the year without century as a decimal
          number (00-99).

     %\b%Z\bZ   is replaced by the time zone name.

     %\b%%\b%   is replaced by ``%''.

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
     date(1), ctime(3), printf(1), printf(3)

S\bST\bTA\bAN\bND\bDA\bAR\bRD\bDS\bS
     S\bSt\btr\brf\bft\bti\bim\bme\be conforms to ANSI X3.159-1989 (``ANSI C'').


Printed 7/27/90                3Q                               3