strftime

#include <locale.h>
#include <stdio.h>
#include <time.h>

int main(void)
{
    char buff[70];
    struct tm my_time =
    {
        .tm_year = 112, // = year 2012
        .tm_mon = 9,    // = 10th month
        .tm_mday = 9,   // = 9th day
        .tm_hour = 8,   // = 8 hours
        .tm_min = 10,   // = 10 minutes
        .tm_sec = 20    // = 20 secs
    };

    if (strftime(buff, sizeof buff, "%A %c", &my_time))
        puts(buff);
    else
        puts("strftime failed");

    setlocale(LC_TIME, "el_GR.utf8");

    if (strftime(buff, sizeof buff, "%A %c", &my_time))
        puts(buff);
    else
        puts("strftime failed");
}