The GNU C Library - Time Functions Example

Time Functions Example

Here is an example program showing the use of some of the local time and calendar time functions.

	#include <time.h>
	#include <stdio.h>
	
	#define SIZE 256
	
	int
	main (void)
	{
	  char buffer[SIZE];
	  time_t curtime;
	  struct tm *loctime;
	
	  /* Get the current time. */
	  curtime = time (NULL);
	
	  /* Convert it to local time representation. */
	  loctime = localtime (&curtime);
	
	  /* Print out the date and time in the standard format. */
	  fputs (asctime (loctime), stdout);
	
	  /* Print it out in a nice format. */
	  strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime);
	  fputs (buffer, stdout);
	  strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime);
	  fputs (buffer, stdout);
	
	  return 0;
	}

It produces output like this:

	Wed Jul 31 13:02:36 1991
	Today is Wednesday, July 31.
	The time is 01:02 PM.