Editing Binary clock (section)

{{Short description|Clock that displays the time in a binary format}}
{{more footnotes|date=September 2019}}
{| class="wikitable floatright plainlinks" style="text-align:center;"
! colspan="2" | GMT at page generation (<small>[https://en.wikipedia.org/w/index.php?title=Binary_clock&action=purge Update]</small>)
|-
| 24-hour time || style="white-space:nowrap" | {{#time:H:i:s}}
|-
| Expressed in Binary || style="white-space:nowrap" | {{#invoke:BaseConvert|10to2|{{#time:H}}}}:{{#invoke:BaseConvert|10to2|{{#time:i}}}}:{{#invoke:BaseConvert|10to2|{{#time:s}}}}
|-
| "True" Binary Time<br>(Seconds since start of day) || {{#invoke:BaseConvert|10to2|{{#expr:({{#time:H}}*3600)+({{#time:i}}*60)+{{#time:s}}}}|width=16}}
|}

A '''binary clock''' is a [[clock]] that displays the time of day in a [[binary numeral system|binary]] format.  Originally, such clocks showed ''each decimal digit'' of [[sexagesimal]] time as a binary value, but presently binary clocks also exist which display hours, minutes, and seconds as binary numbers. Most binary clocks are [[Digital clock|digital]], although [[analog clock|analog]] varieties exist. True binary clocks also exist, which indicate the time by successively halving the day, instead of using hours, minutes, or seconds. Similar clocks, based on [[Gray code]]d binary, also exist.