[users at bb.net] How can I find the server's current time via the api?

[Caleb Crome]

Hi there,
  I'm writing a little app that watches builders and builds.  I want
to know how long it's been since the build started.  However, I can't
find anywhere in the v2 api that tells what time the server thinks it
is.  Of course, I can use my local computer's time to compare against,
but if my local computer and the master's clock are set wrong, then
the delta will be totally wrong.

I'd prefer to get the 'started_at' and 'current_time' both from the
master, rather than get 'started_at' from the master, and
'current_time' from my local computer.

does that exist in the API?  I couldn't find it.

Thanks,
 -Caleb