Can I end my contest early? I have already found the winner!

As long as the contest is active, you can change the end date as the client.

To do this, go to your contest page and click on "overview" under the contest details.
Then click on "edit" and scroll all the way down. There, you'll find the end date of your contest, which you can modify.

Has your contest already ended and you haven't selected a winner yet? You can extend it by another week!