Outlook Calendar Feed Task Time
This error occurs for me just the same in MacOS Calendar, Windows Outlook, and iOS: I have a recurring task at 3 PM every Monday, Wednesday, and Friday. This week, everything looks fine on the calendar. Next week and thereafter, this task occurs at 3 AM instead of 3 PM.
I have many recurring tasks, some daily, weekly, or other schedule. Some remain consistent over time while others flip to AM instead of PM in subsequent weeks.