I have a Z-Wave switch connected to my Smartthings Hub that I use to turn on and off my porch and Christmas lights. I have it set to power on at sunset, which is does, and to power off at 11:59 pm, but it powers off at 10:00 pm. There are no other routines set. Any ideas why it does this and how to get it to power off at 11:59 pm as it should? It’s been like this for months.