They do not release on the weekends. It will be up to the individual facility as to which day they choose to release him, Best guess would be Monday the 20th - but we suggest you call the facility and ask them what they intend to do.
https://www.inmateaid.com/ask-the-inmate/my-husbands-release-date-is-scheduled-in-the-computer-as-may-192013-at-8am-but-hes-hearing-that-they-dont-let-people-out-on-the-weekends-i-am-trying-to-find-out-if-they-do-let-ppl-out-on-the-weekends#answer
Accepted Answer Date Created: May 14,2013