The Is date equals operator is used to select dates that exactly match the DD/MM/YYYY value entered in the condition input field. Any hours and minutes values associated with a date are ignored.
Setting the Date condition of a Birth date field to Is date equals, and entering 12/12/1978 as the input field value, selects all those contacts whose birth date matches that value.
The Is date equals operator applies to date data types.
See Input field types for more about each input field.