Binary clock


Binary clock

A binary clock is a clock which displays traditional sexagesimal time in a binary format. Originally, it showed "each decimal digit" of sexagesimal time as a binary value, but presently true binary clocks also exist. Most binary clocks are digital, although analog varieties exist.

Binary-coded decimal clocks

As of 2008, the most common binary clocks sold are designed by Anelace Inc., and uses six columns of LEDs to represent zeros and ones. Each column represents a single decimal digit, a format known as binary-coded decimal (BCD). The bottom row in each column represents 1 (or 20), with each row above representing higher powers of two, up to 23 (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 represent the hour, the next two represent the minute and the last two represent the second. Since zero digits are not illuminated, this clock is not usable in the dark.

To read a BCD clock add the values of each column of LEDs to get six decimal digits. This gives two decimal digits each for hours, minutes, and seconds.

True binary

The latest version of the Anelace Inc. binary clock can also use just true binary to give the time (one number each for hours, minutes, and seconds) rather than six numbers for the decimal digits of the time units. Numbers are then displayed horizontally:

The above display uses three binary number columns, one for each of the units (hours, minutes and seconds) of the conventional time system.

See also

* Hexadecimal time

External links

* [http://www.pygame.org/project/793/?release_id=1366 pyBCD] , a desktop binary clock created in Python. Works in Windows, *nix/Linux and Macintosh.
* [http://binaryclock.googletoad.com/ Online Binary Clock]
* [http://www.gimpfaq.org/tutorials/binclock/ How To Build A Binary Clock]
* [http://www.silliam.com/bclock Digital Binary Clock]
* [http://anthony.liekens.net/index.php/Misc/AnalogBinaryClock Analog Binary Clock]
* [http://www.getjar.com/products/16432/BinaryClock Mobile Binary Clock] - A binary clock for your Java enabled phone.
* [http://www.innovatoys.com/Merchant2/graphics/00000001/popup/BCLOCK-L1f.html Real Time Flash Binary Clock]
* [http://www.glassgiant.com/geek/binaryclock/ Flash binary clock]
* [http://t-monster.com/tick.htm Simple Javascript binary clock]
* [http://logic-dust.blogspot.com/2006/12/binary-clock.html True binary clock]
* [http://www.abulsme.com/binarytime/ True Binary Time] - the sixteen bit day: showing the time as a fractional part of the day
* [http://binary.onlineclock.net/ Binary Alarm Clock]


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Binary numeral system — Numeral systems by culture Hindu Arabic numerals Western Arabic (Hindu numerals) Eastern Arabic Indian family Tamil Burmese Khmer Lao Mongolian Thai East Asian numerals Chinese Japanese Suzhou Korean Vietnamese …   Wikipedia

  • Clock — For other uses, see Clock (disambiguation). Timepiece redirects here. For the Kenny Rogers album, see Timepiece (album). Platform clock at King s Cross railway station, London …   Wikipedia

  • Clock Game — is a pricing game on the American television game show The Price Is Right . Debuting on the show s sixth episode on September 11, 1972, it is played for two prizes, each worth between $400 and $999; and a $1,000 cash bonus.Game playThe contestant …   Wikipedia

  • Binary prefix — Prefixes for bit and byte multiples Decimal Value SI 1000 k kilo 10002 M mega …   Wikipedia

  • Clock of the Long Now — The first prototype, on display at the Science Museum in London. The Clock of the Long Now, also called the 10,000 year clock, is a proposed mechanical clock designed to keep time for 10,000 years. The project to build it is part of the Long Now… …   Wikipedia

  • Binary pulsar — A binary pulsar is a pulsar with a binary companion, often another pulsar, white dwarf or neutron star. They are one of the few objects which allow physicists to test general relativity in the case of a strong gravitational field. Although the… …   Wikipedia

  • binary code — Computers. a system of representing letters, numbers, or other characters, using binary notation. * * * Code used in digital computers, based on a binary number system in which there are only two possible states, off and on, usually symbolized by …   Universalium

  • Binary-coded decimal — In computing and electronic systems, binary coded decimal (BCD) is a digital encoding method for numbers using decimal notation, with each decimal digit represented by its own binary sequence. In BCD, a numeral is usually represented by four bits …   Wikipedia

  • Serial binary adder — The serial binary adder is a digital circuit that performs binary addition bit by bit. The serial full adder has three single bit inputs for the numbers to be added and the carry in. There are two single bit outputs for the sum and carry out. The …   Wikipedia

  • Radio clock — A radio clock is a clock that is synchronized by a time code bit stream transmitted by a radio transmitter connected to a time standard such as an atomic clock. Such a clock may be synchronized to the time sent by a single transmitter, such as… …   Wikipedia