When calendar requests are sent from another time zone, there is no indication of this in the red calendar bar in the message.

Instead, if a calendar request is sent from UTC+1 to a GMT location, it shows the time in the local time (11am instead of 10am) and does not indicate that its a different time zone.

Ideally, the time shown should just say the local time of the event, using the recipients time zone, not the senders time zone. And if this isnt possible, then it should at least indicate a different time zone. Otherwise I would think that a meeting at 11am UTC+1 would conflict with a meeting at 11am GMT/UTC which is not correct.