If DayOfWeek({Table.Field}) = 7
Then DateTime(DateSerial(Year({Table.Field}),Month({Table.Field}),Day({Table.Field})+2),Time(7,0,0))
Else
If DayOfWeek({Table.Field}) = 1
Then DateTime(DateSerial(Year({Table.Field}),Month({Table.Field}),Day({Table.Field})+1),Time(7,0,0))
Else {Table.Field}