מתוך man 2 stat:
The time-related fields of struct stat are as follows: st_atime Time when file data last accessed. Changed by the mknod(2), utimes(2) and read(2) system calls. st_mtime Time when file data last modified. Changed by the mknod(2), utimes(2) and write(2) system calls. st_ctime Time when file status was last changed (inode data modifica- tion). Changed by the chmod(2), chown(2), link(2), mknod(2), rename(2), unlink(2), utimes(2) and write(2) sys- tem calls.
