Appiontments In Multiple Time Zones

I have been testing this plugin but have hit a wall...

Ideally if the calendar page could be switched to match different time zones that would be ideal as the appointments are in one time zone and the clients are in multiple time zones.

If there was a way that they could see the time zone that this calendar is listed in and then choose their time zone to have it reformat times to that time zone it would be ideal

At the moment I think this is not possible or I may have missed a setting somewhere?