Does local time zone need a name?

[Alexander Dymo]

On 4/2/07, Torsten Rahn <torsten.rahn at credativ.de> wrote:
> "Local Zone" would exactly make sense if the user does not want to have to
> deal with the timezone names and if the computer is able to retrieve all
> information about times and timezones automatically.
But what does "local timezone" means when I'm on the plane from Europe
to America? ;) How do I figure out that when I arrive to America my
local timezone is different (or not different) from the one I had
before?