I have been trying to edit the start time of my event (hosted by a page with co-hosts) over the last few days and repeatedly finding that when I change the event with a new time, the time doesn't change. I've tried on both desktop and mobile without success.
I'm editing the event from a different time zone than where it is happening, which may be a factor. This morning I finally got this mysterious error message when editing the page: "Editing isn't currently supported for Keywords and Event Schedules."
I searched for this error message on Google and there's no obvious solution, so I'm posting it here as a place for posting information in case anyone has insights into what might be going on.