ftime(3)                                              Library Functions Manual                                             ftime(3)

       ftime - return date and time

       Standard C library (libc, -lc)

       #include <sys/timeb.h>

       int ftime(struct timeb *tp);

       NOTE: This function is no longer provided by the GNU C library.  Use clock_gettime(2) instead.

       This  function  returns  the current time as seconds and milliseconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).  The
       time is returned in tp, which is declared as follows:

           struct timeb {
               time_t         time;
               unsigned short millitm;
               short          timezone;
               short          dstflag;

       Here time is the number of seconds since the Epoch, and millitm is the number of milliseconds since time seconds  since  the
       Epoch.   The timezone field is the local timezone measured in minutes of time west of Greenwich (with a negative value indi‐
       cating minutes east of Greenwich).  The dstflag field is a flag that, if nonzero, indicates that Daylight  Saving  time  ap‐
       plies locally during the appropriate part of the year.

       POSIX.1-2001 says that the contents of the timezone and dstflag fields are unspecified; avoid relying on them.

       This function always returns 0.  (POSIX.1-2001 specifies, and some systems document, a -1 error return.)

       Starting  with  glibc  2.33,  the ftime() function and the <sys/timeb.h> header have been removed.  To support old binaries,
       glibc continues to provide a compatibility symbol for applications linked against glibc 2.32 and earlier.

       For an explanation of the terms used in this section, see attributes(7).

       │Interface                                                                                        │ Attribute     │ Value   │
       │ftime()                                                                                          │ Thread safety │ MT-Safe │

       4.2BSD, POSIX.1-2001.  POSIX.1-2008 removes the specification of ftime().

       This function is obsolete.  Don't use it.  If the time in seconds suffices, time(2) can be used; gettimeofday(2)  gives  mi‐
       croseconds; clock_gettime(2) gives nanoseconds but is not as widely available.

       Early glibc2 is buggy and returns 0 in the millitm field; glibc 2.1.1 is correct again.

       gettimeofday(2), time(2)

Linux man-pages 6.03                                         2022-12-15                                                    ftime(3)