Is there a way to program a KX-TD 1232 to go into night mode at 8 AM on holidays. We have the switch set up to go into night mode at 6PM on weekdays, noon on sat. and 10 AM on Sunday. Anyway to program it for Memorial Day, Christmas, 4th of July, etc.? It's a pain having to have someone go to the office just to do this on holidays.

Thanks,
Dick