There's no reason to import a photo a second time. Importing a second time is never a good idea, and always leads to problems.
Instead, you just tell Lightroom where the photo is located now. How simple is that? Please follow these instructions: Adobe Lightroom - Find moved or missing files and folders
Sometimes there is a reason (perhaps). I have previously imported video files in the catalog on my C: drive in year/month folders. i want to move those to my E: drive with the same folder structure. Importing facilitates the creation of year/month folders. I had done that on prior versions of lightroom when migrating drives. It helped immensely in cleaning up the various folders by creating year/month folders on import. The only other option is to create all those year/month folders on the E: drive manually which can be tedious when there is 14 years of files.
Why can't you use the Filter Bar to find the files by Year/Month/Day? Of course you can. You don't need to tediously create folders, or import a second time, in order to find the files by year/month/day.