We have the Datebirth field on Contact entity form. When a user picks the date 1 October 1983, the system automatically changes it to 30 September 1983. However, this kind of magic doesn't happen with other dates. The field behavior is User Local. Format is Date Only. Our timezone GTM +3. Crm converts it to GTM +0 on changing field value correctly. Also we cannot change the behavior.
What could be the mysticism of 10/1/1983?
