Editing Day (section)

=== In decimal and metric time ===
{{Main|decimal time|Metric time}}
[[File:Decimal Clock face by Pierre Daniel Destigny 1798-1805.jpg|thumb|Decimal clock face, made in around the start of the 19th century]]
Various [[Decimal time|decimal]] or [[metric time]] proposals have been made, but do not redefine the day, and use the day or [[sidereal day]] as a base unit. Metric time uses metric prefixes to keep time. It uses the day as the base unit, and smaller units being fractions of a day: a metric hour (''deci'') is {{frac|1|10}} of a day; a metric minute (''milli'') is {{frac|1|1000}} of a day; etc.<ref>{{Cite web |last=Veitch |first=Harriet |date=2008-04-02 |title=Why don't we have metric time? |url=https://www.smh.com.au/entertainment/books/why-dont-we-have-metric-time-20080402-gds868.html |access-date=2022-08-21 |website=The Sydney Morning Herald |language=en |archive-date=2022-08-21 |archive-url=https://web.archive.org/web/20220821154425/https://www.smh.com.au/entertainment/books/why-dont-we-have-metric-time-20080402-gds868.html |url-status=live }}</ref> Similarly, in decimal time, the length of a day is static to normal time. A day is also split into 10 hours, and 10 days comprise a ''décade –'' the equivalent of a week. 3 ''décades'' make a month.<ref name=":5">{{Cite journal |last=Vera |first=Hector |date=2009 |title=Decimal Time: Misadventures of a Revolutionary Idea, 1793–2008 |url=https://brill.com/view/journals/kron/9/1-2/article-p29_6.xml |journal=KronoScope |volume=9 |issue=1–2 |pages=29–48 |doi=10.1163/156771509X12638154745382 |issn=1567-715X |access-date=2022-08-21 |archive-date=2022-08-21 |archive-url=https://web.archive.org/web/20220821154425/https://brill.com/view/journals/kron/9/1-2/article-p29_6.xml |url-status=live }}</ref>{{Rp|page=35}} Various decimal time proposals which do not redefine the day: Henri de Sarrauton's proposal kept days, and subdivided hours into 100 minutes;<ref name=":5" />{{Rp|page=42}} in Mendizábal y Tamborel's proposal, the [[sidereal day]] was the basic unit, with subdivisions made upon it;<ref name=":5" />{{Rp|page=|pages=42–43}} and Rey-Pailhade's proposal divided the day 100 ''cés.<ref name=":5" />{{Rp|page=42}}''