Date fields in ACF are not stored in standard DB date formats. You cannot use 'type' => 'DATE' with these fields. You need to use wither number or char as type. The format of the value in the DB is “YYYYMMDD” or in standard date notation ‘Ymd’
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users
Clients need flexibility. Developers need a repeatable workflow that doesn’t have a steep learning curve. See how digital marketing agency Noiza found both with Advanced Custom Fields in our latest case study.https://t.co/BxQAy6COJt