C++ atime ger inte det jag förväntar mig? (last access time)

#include <iostream>
#include <ctime>
#include <sys/types.h>
#include <sys/stat.h>
#include <cerrno>
#include <cstring>

int main(int argc, char** argv )
{
   struct stat fileInfo;
    
   if (argc < 2) {
      std::cout << "Usage: fileinfo <file name>\n";
      return(EXIT_FAILURE);
   }

   if (stat(argv[1], &fileInfo) != 0) {  // Use stat() to get the info
      std::cerr << "Error: " << strerror(errno) << '\n';
      return(EXIT_FAILURE);
   }

   std::cout << "Used          : " <<
      std::ctime(&fileInfo.st_atime);     // Access time
   std::cout << "Created       : " <<
      std::ctime(&fileInfo.st_ctime);     // Creation time
   std::cout << "Modified      : " <<
      std::ctime(&fileInfo.st_mtime);     // Last mod time
}