Date fields will always have a year, month, and day.
You can't enter a value in a date field without all three components. You
can ignore putting in the time and it will default to 12:00:00 AM
However, once a date is entered, you can present it with just a month and
year using a format function or the format property of a text box on a form
or report.
Be sure you understand the difference between a format and an input mask.
An input mask is only used to control how a value is entered in control or
field. You can control what values are entered in a field for text fields,
but not for date or numeric fields. For dates, an input mask only ensures a
valid date is entered.
A format, on the other hand, is used to present data they way you want to
see it.
