> > When opening a message in KMail, there is a gray
> rectangle area above
> > the message containing the basic To/From/Subject
> information.
> > 
> > In Trinity there is a blue box at the right side of
> the gray area. The
> > blue box uses a gradient background and contains the
> current time of the
> > person who sent the message.
> > 
> > There is a related configuration option in Appearance,
> Message Window,
> > named "Show current sender time."
> > 
> > How is the current sender's time being determined? Is
> this a local
> > calculation or is KMail fetching data from somewhere
> online before
> > calculating and displaying the time?
> 
> I suspect the date/time you are seeing is actually the time
> the mail was
> sent by the originator rather than his/her current time.
> 
> Take a look at the headers for these mails and see how the
> content of the
> box compares with the 'Date:' header.

The time is the sender's current time.

I want to know how this information is derived.