Hmmm. I installed this plugin today, and it comes up with the times OK in [E HH:mm Country-City] format, but some timezones seem to be 12 hours short - i.e., when it should be 23:55hrs the display is 11:55 (that's A.M., not P.M.).
I have used "The Personal World Clock" at timeanddate.com for a few years now, and that always displays these timezones correctly, so the problem would seem to be elsewhere - e.g., (I guess) in the plugin's interpretation of the time.
Any ideas?