Julian date conversion script

I'm looking for a Javascript that will convert a 10-digit Julian date/time to a regular date. I intend to use this in a PDF form as a custom format script.  I have a barcode example in Julian date/time format that scans as: "&>0231512359".  That equates to 31 MAY 2023 23:59.  I need to convert that 10-digit Julian date/time to a regular MM/DD/YY format (without the time).  I already have a custom keystroke script that cleaves the "&>" from the beginning.  I just need a script to convert the rest of the barcode to a MM/DD/YY format.  I would greatly appreciate any help I can get.  Thanks in advance!