ftime(3) Library Functions Manual ftime(3) NAME ftime - return date and time LIBRARY Standard C library (libc, -lc) SYNOPSIS #include [[deprecated]] int ftime(struct timeb *tp); DESCRIPTION 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 num- ber 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 indicating minutes east of Greenwich). The dstflag field is a flag that, if nonzero, indicates that Daylight Saving time applies lo- cally 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. RETURN VALUE This function always returns 0. (POSIX.1-2001 specifies, and some systems document, a -1 error return.) ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). allbox; lbx lb lb l l l. Interface Attribute Value T{ ftime() T} Thread safety MT-Safe STANDARDS None. HISTORY 4.2BSD. Marked as LEGACY in POSIX.1-2001; removed in POSIX.1-2008. Re- moved in glibc 2.33. This function is obsolete. Don't use it. If the time in seconds suffices, time(2) can be used; gettimeofday(2) gives microseconds; clock_gettime(2) gives nanoseconds but is not as widely available. BUGS Early glibc2 is buggy and returns 0 in the millitm field; glibc 2.1.1 is correct again. SEE ALSO gettimeofday(2), time(2) Linux man-pages 6.18 2025-10-29 ftime(3)