How to add time stamps for two time zones in the body of e-mails

[user1]

How can I add time stamps for two time zones, my local time zone and 
another time zone, e.g. for Sweden and Knoxville.

I would like my e-mail to begin with something like:

This e-mail is sent at:
Thu Dec 16 2010 14:25:02 Swedish time
Thu Dec 16 2010 08:25:02 Knoxville time

In this way ordinary recepients can immediately see when the email was 
written?

I am using the Evolution e-mail client program.