TYPO3 Core

set a TCA field like this :
'birthday' => array (
'exclude' => 1,
'label' => 'LLL:EXT:ensci_contacts/Resources/Private/Language/locallang_db.xml:fe_users.birthday',
'config' => array (
'type' => 'input',
'dbType' => 'date',
'size' => '10',
'max' => '10',
'eval' => 'date'
)
),
For birthday > 01-01-1970, no problem.
For birthday < 01-01-1970, the display date is one day before the date that is in the database. Each time you click save button, the birthday is one day before !