What time is it on the Mengenlehreuhr?
This is surely the craziest clock we have ever seen, the Mengenlehreuhr (Berlin Clock or Berlin Uhr) claims to be the first timepiece that measures time in colours, light, and set theory.
First installed in Berlin in 1975 and designed by inventor Dieter Binninger, this crazy timepiece has 24 lights that blink on and off in patterns that measure a 24-hour cycle.
The original full-sized Mengenlehreuhr was originally located at the Kurfürstendamm at the corner of Uhlandstrasse. After the Berlin Senate decommissioned it in 1995, the clock was relocated to a site in Budapester Strasse.
The one circular blinking yellow light on top denotes the seconds, two top rows denote the hours and two bottom rows denote the minutes.
The clock is read from the top row to the bottom.
The top row of four red fields denotes five full hours each, alongside the second row, also of four red fields, which denotes one full hour each. The third row consists of eleven yellow-and-red fields, which denote five full minutes each (the red ones also denote 15, 30 and 45 minutes past), and the bottom row has another four yellow fields, which mark one full minute each. The round yellow light on top blinks to denote even- (when lit) or odd-numbered (when unlit) seconds.
Can you tell what the time is below?
43 Budapester Strasse