How to connect gitlab using custom port

Can anyone help me with connecting gitlab ce which is connected using the aws ec2 instance using the custom port instead of ssh port

git clone ssh://git@mydomain.example:[port]/path/to/project

or if you want it permanent add it into ~/.ssh/config file (create if needed)

Host mydomain.example
    User git
    Port 12345

Even after changing the port details in the configuration file as mentioned still not able to connect