What is the link for employees to submit timesheets?

I presume you are referring to the link of the form?

Your users can fill out your online form by using the direct link. You can the direct link of your form in two ways:

Method #1: You can get it in the "Preview" window.

Here you can see the preview window and the form's direct link:

Method #2: You can get it in your "Publish" wizard

Here click the "LINK" tab and copy the direct link of the form there.

Your users can fill out the form as long as they view the form on a web browser that has an active internet connection.

I hope that helps.