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


int main(int argc, char * argv[])
{
    time_t seconds_number = time(NULL);

    tm local_time;

    localtime_s(&local_time, &seconds_number);

    char date[11];

    if (strftime(date, sizeof(date), "%F", &local_time))
    {
        printf("%s\n", date);
    }

    char date_time[20];

    if (strftime(date_time, sizeof(date_time), "%F %T", &local_time))
    {
        printf("%s\n", date_time);
    }

    return 0;
}