Decimal calendar

The Gregorian calendar, although enjoying near universal acceptance, has sometimes been criticized as being cumbersome, inefficient and culturally imperialistic; as a result a number of decimalized alternatives have been proposed.

The French Revolutionary Calendar, which was introduced along with decimal time in 1793, was the first of these. It consisted of a 12 month year, with each month consisting of three 10-day weeks, . It was utilized as the official calendar of France for a period of 12 years, but was abolished by Napoleon in 1805.

A similar reform calendar was introduced during the early years of the USSR, however it too proved unsuccessful in the face of popular opposition.

No decimal calendar proposal to date has gained a level of public acceptance sufficient to ensure its longterm success, and some have argued that the cost of any proposed conversion would far outweigh the savings that it might deliver.