man scan_httpdate () - parse a HTTP date
NAME
scan_httpdate - parse a HTTP date
SYNTAX
#include <scan.h>
int scan_httpdate(const char *src,time_t *dest);
DESCRIPTION
scan_httpdate parses a date as defined in the HTTP standard into a time_t. It returns the number of bytes read from src (0 for parse error).
The only supported time zone is GMT.