google is showing the wrong hours and phone number for my shop

Search your shop name on maps and make sure there isn't a second listing. Duplicates turn up a lot after a move or a rebrand, and the old one can be what people are actually seeing. You can report it as a duplicate from the listing itself.

Two likely causes. Either the profile itself has old info, or Google accepted an edit from someone else (users can suggest changes, and Google sometimes applies them automatically). Log into your Business Profile and look for a notice about Google updates to your profile. If it's there, review them and reject the wrong ones. Then set the correct hours and number yourself, and add special hours for holidays so it doesn't guess. Also check your website footer, Facebook page and any directory listings. If they still carry the old number, Google can keep picking it up from there.