In your query that is the recordsource for the form, create a calculated column where the Field is HoursOnly: DatePart("h",[DateTimeField]). (This assumes that the name of your field is DateTimeField.) <br><br>This will create an integer field of hours only called HoursOnly in your recordsource. Then, in the form footer place a calculated field whose controlsource is =Sum([HoursOnly]).