libc.info: ctime

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`ctime'--convert time to local and format as string

*Synopsis*
     #include <time.h>
     char *ctime(const time_t *CLOCK);
     char *ctime_r(const time_t *CLOCK, char *BUF);
   *Description*
Convert the time value at CLOCK to local time (like `localtime') and
format it into a string of the form
      Wed Jun 15 11:38:07 1988\n\0
   (like `asctime').
*Returns*
A pointer to the string containing a formatted timestamp.
*Portability*
ANSI C requires `ctime'.
   `ctime' requires no supporting OS subroutines.