Changing CMS Item upload date

I was wondering if I could edit the upload date of the form submissions for my customer reviews. Every form submission is added to a cms collection using zapier, the reviews were uploaded on the clients previous (non-Webflow) site, and I want to upload them to the new Webflow site, but I don’t want them all to have the same date on them as it looks like I have just created the reviews. Any ideas?

Here is my site Read-Only: LINK