Is it possible to determine the date on which a Gitlab CE user was created please?
Yes,you can identify the date of the user which you have created.
Follow the below step:
First go to the GitLab GUI and login with the root/administrator user.
And then go to the admin area and check your created user which you have created on GitLab and move your mouse pointer to the created user to see the date of that user.
You can also follow the below image for better understanding
Hope the above step will help you
Please feel free to reply if you still have any query