I'm not sure I understand your problem.
Programming languages are usually all very similar, so if you just post your problematic code I might be able to help.
I've got no real clue about the SAMCast thing, but if you just need a snippet to check the current time and display a message if it's that time, this should work:
It will check whether the current time is 09:00 on tuesday or 21:00 on wednesday and prints xxx in a message box if either is true.
If WeekdayName(weekday(Date), True) = 'Tue' And hour(time) = 9 And minute(time) = 0 Then
ElseIf WeekdayName(weekday(Date), True) = 'Wed' And hour(time) = 21 And minute(time) = 0 Then