There actually isn't a create date. The ctime reflects the time when the directory entry was changed. (status changed)
This could be from creating the time or just from altering the permissions.
ls --sort=time --time=
ls: ambiguous argument `' for `--time'
Valid arguments are:
- `atime', `access', `use'
- `ctime', `status'
Read the info manual for ls to determine which you want to use. --time=atime, --time=ctime or the default.
Use the -r argument to reverse the order.