Hi, I just found a post with the same problem. It seems that because it’s a USA server it’s causing problems. SmartThings recommend adding 60 mins to everything. LOL That’ll fix it. Seems lots of USA have same problem due to their own time regions.
It goes back in 3 weeks so it should work as normal after that.
The post I found was from 2015, I would have thought they would have solved it by now.