Setting the time for the directory in C-programming

My question is how can we set the times for the created directories. I am using a char array[10] for the name of the directory. Is there a way to output the differences between those time?

Here is my code:

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <dirent.h>



 int main(int argc, char * argv[])
 {
     argv = malloc(sizeof(char));

    //char modDir[10];
    //char baseDir[10];

    if(argc > 2 && argc <= 4)
    {
            printf("do the coden");

    }
    else if(argc < 2 )
    {
            fprintf(stderr, "Error: too few argumentsn");
    }
    else if(argc > 4)
    {
            fprintf(stderr, "Error: too much argumentsn");
    }

    free(argv);
 }

What I am trying to do is to prompt the user to add 2 directories as argument and comparing the times they were created. I was thinking about using the time function from #include but I don't know how to use it in this context. Would "uintmax_t" be useful in this context?

Thanks