2.3.1.2. Events with begin and end times in different time zones

An airline reservation system is used to book a flight which leaves at 1:10 pm PST from San Francisco, and arrives at 9:43 pm EST in New York, NY (5 hours 33 mins flying time) or one that leaves at 1:45 pm from Sydney, Australia and arrives in San Francisco, CA at 10:05 am PST(13 hours 20 mins flying time). An ICS file is sent to user to add to their calendar.