Binary clock

Binary clock
The current time is displayed with 0 and 1 in the so-called BCD code (binary coded decimal).
Hour: 0*16+1*4+1*2+0*1 = 8+4+2 = 14
Minute: 1*32+1*8*0*4+1*2+1*1 = 32+16+8+1 = 59
Second: 1*32+0*8*1*4+1*2+1*1 = 32+4+1 = 39
Results at 2 p.m. 59 minutes and 39 seconds, i.e. 21 seconds before the museum is opened.

Quantity theory Clock
The Berlin clock, also known as the quantity-watch, is a public clock in Berlin. It was developed in 1975 by the inventor Dieter Binninger on behalf of the Berlin Senate and shows the time about a number of bright lamps.

station clock
Binary clock with three lines for the electronic display of the hours (16,8,4,2,1), minutes (32,16,8,4,2,1), seconds (32,16,8,4,2,1) on the facade of the main train station in St. Gallen, Switzerland. The clock was designed by the artist Norbert Möslang.
It is 9:25 a.m. and 50 seconds. If your train drives at 9:26 a.m., you can no longer make it. The trains in Switzerland run on time.