char * asctime ( const struct tm * timeptr );

<ctime>

Convert tm structure to string

Interprets the contents of the tm structure pointed by timeptr as a calendar time and converts it to a C string containing a human-readable version of the corresponding date and time.

The returned string has the following format:

Www Mmm dd hh:mm:ss yyyy

Where Www is the weekday, Mmm the month in letters, dd the day of the month, hh:mm:ss the time, and yyyy the year.

The string is followed by a new-line character ('\n') and the terminating null-character.

Parameters

timeptr

Pointer to a tm structure that contains a calendar time broken down into its components (see tm).

Return Value

The array which holds this string is statically allocated and shared by both the ctime and asctime functions. Each time either one of these functions is called the content of this array is overwritten.

Example

/* asctime example */
#include <stdio.h>
#include <time.h>

int main ()
{
  time_t rawtime;
  struct tm * timeinfo;

  time ( &rawtime );
  timeinfo = localtime ( &rawtime );
  printf ( "The current date/time is: %s", asctime (timeinfo) );
  
  return 0;
}

Output:

The current date/time is: Sat May 20 15:21:51 2000

See also