[tz] Mongolian time zone.

[Paul Eggert]

Phake Nick wrote:
> Currently, tz database say Mongolia use UTC+7/8/9 as timezone.
> However, after quick google search, I found a question about time of
> Mongolia in a Mongolia question and answer time at [1]. The page itself is
> facing technical problem to me so I accessed it via Google cache

Thanks, but as you can see from the 'asia' file we prefer to get this sort of 
information from reliable sources. "We have wildly conflicting information about 
Mongolia's time zones," says the asia file, and in tricky areas like this it's 
best to be cautious about the sources.