It’s amazing.
In a repeating event on my calendar, the time is 9am Eastern Time. I’ve set the calendar to display United Kingdom Time.
Last week’s event is at 2pm, this week’s is at 1pm, and the following weeks are back to 2pm. Exactly as it should be, because the United Kingdom is ending Daylight Saving Time (a.k.a. Summer Time) one week earlier than U.S. times. Yes, it’s amazing.