In 'Angels and Demons' Robert is met at 5am in Boston USA and needs to be in Vatican City Italy by 8pm He apparently makes it Is this possible even with a private jet?

I believe that 'Robert' would have to break the laws of physics as we know them today. The time-zone difference plus the travel-time would be more than 15 hours. Vatican City is probably too small a parcel of land to even HAVE an airport, so a cab ride from Rome's airport to Vatican City would add some time to the quotient as well. Let's not even DISCUSS Boston's traffic mess!