REST API Person Update Birthdate

We are grabbing a person record and modifying two fields in additionattributes data then sending the information back in an update. When we send the exact same Birthdate we received from the Person GET call it saves it as one day prior to the value.

For example we get 1989-07-04T00:00:00+00:00 and send back 1989-07-04T00:00:00+00:00 which then stores that date as 1989-07-03 as the birth date in the name table. Any ideas?