This is best illustrated
in this post on my friend's blog. First clue is that the time on the blog entry is later than the time of the first comment. Further down, you can see where I've been playing with it, and the order that the comments
should have been in by the numbers in the post. Even when I post two comments one after the other, MT throws the clock back/forward an hour. After "seven eight" I changed the blog's timezone from UTC+3 to UTC+2, but that only shifted the jumps an hour earlier. (The blog is hosted on a machine in England, though it's British Summer Time right now, with all the
Daylight Saving weirdness that implies)