I’ve not seen this mentioned over at the Google Help page, but it understands plain English time zone requests, so asking it:
does exactly what you’d expect: the current local time at the top of the page, and a list of links for the rest of it. Very handy, as I rarely need a full blown world clock, but just need to check it’s sane to make a call.
Now I just have to sit back and wait for the people saying: “Yup, been using it for the last 24 months”… If you have, could you tell me where you discovered it ? Just in case there’s a super-secret page of not-even-beta Google features I’m missing out on.
Didn’t know about the time zone thing, but there’s lots of features in Google that aren’t obvious.
For the terminally maths-challenged (me), you can type in equations and it’ll give you the answer; it even understands a fair number of functions: sqrt(100) gives the obvious answer.
If you want a quick word-definition, then you can use type in “define: >word<” and it’ll look the word up on a few ‘definitive’ websites.
I’m sure there’s others, but they’re the ones I use regularly.
In KDE (3.4 and above) you can configure the clock to show you which ever times zones you want when you mouse over the clock.
In Gnome (which I have running on the work laptop with SLED) I can’t find an equivalent.