curlgetdate(3) libcurl Manual curlgetdate(3)

NAME
       curlgetdate  -  Convert an date string to number of seconds since Jan-
       uary 1, 1970

SYNOPSIS
       ##iinncclluuddee <>

       ttiimmeett ccuurrllggeettddaattee((cchhaarr **datestring,, ttiimmeett **now ));;

DESCRIPTION
       This function returns the number of seconds since January 1st  1970  in
       the  UTC time zone, for the date and time that the datestring parameter
       specifies. The now parameter is not used, pass a NULL there.

       NNOOTTEE:: This function was rewritten for the 7.12.2 release and this docu-
       mentation  covers  the functionality of the new one. The new one is not
       feature-complete with the old one, but most of the formats supported by
       the new one was supported by the old too.

PPAARRSSIINNGG DDAATTEESS AANNDD TTIIMMEESS
       A  "date" is a string containing several items separated by whitespace.
       The order of the items is immaterial.  A date string may  contain  many
       flavors of items:

       ccaalleennddaarr ddaattee iitteemmss
               Can  be  specified several ways. Month names can only be three-
               letter abbrivations, numbers can be zero-prefixed and the  year
               may  use  2  or 4 digits.  Examples: 06 Nov 1994, 06-Nov-94 and
               Nov-94 6.

       ttiimmee ooff tthhee ddaayy iitteemmss
               This string specifies the time on a given day. You must specify
               it  with 6 digits with two colons: HH:MM:SS. To not include the
               time in a date string, will make the function assume  00:00:00.
               Example: 18:19:21.

       ttiimmee zzoonnee iitteemmss
               Specifies  international  time  zone.  There are a few acronyms
               supported, but in general you should instead use  the  specific
               relative  time  compared  to  UTC.  Supported  formats include:
               -1200, MST, +0100.

       ddaayy ooff tthhee wweeeekk iitteemmss
               Specifies a day of the week. Days of the week  may  be  spelled
               out in full: `Sunday', `Monday', etc or they may be abbreviated
               to their first three letters. This is  usually  not  info  that
               adds anything.

       ppuurree nnuummbbeerrss
               If  a decimal number of the form YYYYMMDD appears, then YYYY is
               read as the year, MM as the month number and DD as the  day  of
               the month, for the specified calendar date.


EEXXAAMMPPLLEESS
       Sun, 06 Nov 1994 08:49:37 GMT
       Sunday, 06-Nov-94 08:49:37 GMT
       Sun Nov  6 08:49:37 1994
       06 Nov 1994 08:49:37 GMT
       06-Nov-94 08:49:37 GMT
       Nov  6 08:49:37 1994
       06 Nov 1994 08:49:37
       06-Nov-94 08:49:37
       1994 Nov 6 08:49:37
       GMT 08:49:37 06-Nov-94 Sunday
       94 6 Nov 08:49:37
       1994 Nov 6
       06-Nov-94
       Sun Nov 6 94
       1994.Nov.6
       Sun/Nov/6/94/GMT
       Sun, 06 Nov 1994 08:49:37 CET
       06 Nov 1994 08:49:37 EST
       Sun, 12 Sep 2004 15:05:58 -0700
       Sat, 11 Sep 2004 21:32:11 +0200
       20040912 15:05:58 -0700
       20040911 +0200

STANDARDS       This  parser  was  written  to handle date formats specified in RFC 822
       (including the update in RFC 1123) using time zone name  or  time  zone
       delta  and  RFC 850 (obsoleted by RFC 1036) and ANSI C's asctime() for-
       mat. These formats are the only ones RFC2616 says HTTP applications may
       use.

RREETTUURRNN VVAALLUUEE
       This function returns -1 when it fails to parse the date string. Other-
       wise it returns the number of seconds as described.

       If the year is larger than 2037 on systems with  32  bit  timet,  this
       function  will return 0x7fffffff (since that is the largest possible 31
       bit number).

RREEWWRRIITTEE
       The former version of this function was built with  yacc  and  was  not
       only  very large, it was also never quite understood and it wasn't pos-
       sible to build with non-GNU  tools  since  only  Bison  could  make  it
       thread-safe!

       The  rewrite  was  done for 7.12.2. The new one is much smaller and use
       simpler code.



libcurl 7.0                      5 March 2001                  curlgetdate(3)