Try DateDiff("date format", date1, date2)
e.g.
VB code
dim test as string
test = DateDiff("h", #11/12/2007 12:00:00 PM#, Now())
or
Query builder
Test: DateDiff("h", #11/12/2007 12:00:00 PM#, Now())
or
SQL
DateDiff("h", #11/12/2007 12:00:00 PM#, Now()) AS Test
would return the time...