This is a real usability issue but author's solution isn't really simple or correct. Your computer/Google calendar cannot definitely know your current time zon

This is a real usability issue but author's solution isn't really simple or correct. Your computer/Google calendar cannot definitely know your current time zone. (Imagine traveling but not having switched your computer's time zone.) Second, modifying all your events to be relative to your current time zone seems incredibly destructive — you may have events in your home time zone like conference calls, etc that you don't necessarily want converted. A possible solution might be to ask the user to switch event times when a time zone switch is detected. Also, the computer can ask for clarification if the location of an event can be detected at creation time (i.e. it knows your travel itinerary or location of the event).