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4.5 avg. (85 reviews)

Binary Clock

These clocks use binary code—the language of computers—to show the time. After a few minutes' practice, you'll be able to read the time by adding the values of the lit LEDs in each column.

  • Direct binary mode (in addition to binary coded decimal). Click Here for How to Read Binary Code
  • Dim to change the brightness of the LEDs to match your environment
  • Twelve or twenty-four hour mode. Automatically senses 60 or 50 HZ
  • Made in China


Crystal Blue "Powers of 2" BCD (binary coded decimal) Clock, AC power adapter, and instructions


(in packaging) 7.5" x 5.5" x 2.5"


0.8 lb


Faceplate of plastic materials (ABS with polycarbonate light pipes) and an ABS rear cover; Internally: Board of electronics that includes twenty surface-mount blue LEDs; Power adapter: Standard plastic housing with internal copper and magnetics



Put on a light show, confuse your friends, and exercise your binary-code reading skills with an alarm clock that doesn’t have any numbers on its display. Lyle Morris, an electrical engineer, is the creator of the Anelace Powers of 2 clock. It uses LEDs to display the time in binary code, which is a method of representing computer instructions using 0s and 1s. The columns on the display correspond to hours, minutes and seconds, and each row is assigned a value. To calculate the time, you add up the values of the LEDs that are lit up in each column. (Instructions are included, and it's surprisingly easy to understand, once you learn the code.) The display changes constantly as time passes, and it’s mesmerizing to watch. Lyle’s timepiece is elegant, a great conversation starter, and also educational. Using binary code to represent a familiar value, like time, makes it a little easier to comprehend how the coding system could be used to represent text and other characters within computers. It just might spawn a new hobby or jumpstart a young coder’s imagination.