#2016 @Berlin, Germany
It was around 4:30 pm local time when I clicked this picture and the liquid clock in the photo shows the same. The left most column show the hours and the right most show the minutes. We need to see the number of vessels/rounds that are occupied by the liquid, to know time. I was never aware of something like this existing before seeing this one; absolutely amazed I was for the efforts the designers must have put in to get this into reality. You may google it further to know its operating principle.