It appears that this feature is currently not working anymore.
We know Ask.com added a real-time clock to their search results. So the same searches in Ask.com return the time in those locations. Try time in london or if you do a search just on london and scroll down and look on the right pane, you will see the real time clock.
Why did Google remove this feature from their search results? Was it a mistake, will it come back or is it gone forever?
Forum discussion at WebmasterWorld.