Calendar appointments are changing time by one hour. In the middle of a repeating series, all events are scheduled for 1pm, but then some jump to 2pm, then go back to 1pm later in the same series. Sometimes it coincides with DST but not always. Sometimes, a single non-repeating event changes its time.
Can a user's computer clock impact SOME appointments in a repeating series?
Can a viewer with incorrect clock setting influence the viewed time?
How does Zimbra determine when to adjust the appointment times?