Binary clock
A binary clock uses a binary representation of numbers to display the time. Most binary clocks are digital; it can be analog. The term refers to the display.
The most common binary clock today (12 May 2004) is sold by , and uses 6 columns of LEDs to represent zeros and ones. The bottom row in each column represents 1, with each row above representing higher powers of two, up to 2^3, or 8. To read each individual digit in the time, the user adds the values that each illuminated LED represents, then reads these from left to right. The first two columns are the hour, the second two the minute, and the last two the second. For example, the time shown in the picture is 10:48:36.
