I have seen similar questions, but I suspect there is confusion in understanding what other users and I want. Here is the scenario that I am in right now: I have to deal with webinars that are all around the globe. So if the WanShow is on Friday at 16:30PST in Vancouver and I am working on my machine in London I want to see the event in London time. Below is how another email client solves this problem: You type in the date and time according to Vancouver; you press a button saying that this is a time in Vancouver and the application then shows you the time in London which you can then accept. I can't seem to find such a feature on TB. I have looked under TB options and the extensions and plugins--not particularly carefully--and there is no facility I can find to handle timezones other than set the local time zone, which is of no use in solving the problem. Using a time zone calculator that is outside TB is not a practical solution because of the volume of time zone recalculations I need to do. Ideally, I think people would want the time-zone calculator built into the event creator interface. Kind regards Mike Howell