asctime

Converts date and time to ASCII.

Defined in header <time.h>

Syntax

#include <time.h>
char *asctime(const struct tm *tblock);

Portability

Remarks

asctime converts a time stored as a structure in *tblock to a 26-character string of the same form as the ctime string:

Sun Sep 16 01:03:52 1973\n\0

Return value

asctime returns a pointer to the character string containing the date and time. This string is a static variable that is overwritten with each call to asctime.

See also

• ctime
• difftime
• ftime
• gmtime
• localtime
• mktime
• strftime
• stime
• time
• tzset

Example

#include <stdio.h>
iinclude <string.h>
#include <time.h>

int main (void)
f
   struct tm t;
   char str[80];
   /* sample loading  of tm structure */
   t.tm_sec       1;    /* Seconds */
   t.tm_min    =  30;   /* Minutes */
   t.tm_hour      9;    /* Hour V
   t.tm_mday ' = 22;    /* Day of the Month   */
   t.tm_mon       11;   /* Month */
   t.tmj/ear      56;   /* Year - does not include  century */
   t.tm_wday      4;    /* Day of the week  */
   t.tm_yday      0;    /* Does not show in asctime   */
   t.tm_isdst  =  0;    /* Is Daylight SavTime
                           Does not show in asctime   */

   /* converts structure  to null terminated string  */
strcpy(str,  asctime(&tl
printf ("ls\n", str);
return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

• cppreference (search)
• POSIX (search)
• Microsoft C runtime (search)

These are search links, not yet checked by hand.

Stable link: /3.1/time.h/asctime/ · short form /3.1/asctime/