How long does it take to update an IPAD PRO 2018 with IPAD OS14? Hours?

Hello there, JBY2020!

Thanks for reaching out to the Apple Support Communities! It sounds like you're having an issue updating your iPad to the latest software version available. Check out this article If your iPhone, iPad or iPod touch won’t update. This article will give you steps you can take for issues updating, as well as the next steps you'll need to take if you continue to have an issue updating your iPad.

Thanks again and have a super day!