New calendar conceived by Cesidio Tallini, and having 14 months. The calendar has generated other cultural offshoots like a Martian calendar, as well as a new astrology and astronomy. The Cesidian calendar is superior to the Gregorian calendar in many ways.

There are 7 days in a Cesidian calendar week, as well as 2 irregular or special days:

† Originally was "Juday", coming from the English Jupiter + day. It was changed to Jeuday on 20 April 2006 (P1Ρ06E2006), which comes from the French jeudi + the English day, on the suggestion of linguist Adalbert Kowal. He made the interesting observation that the French form for "Jupiter's Day" was better, since it alludes to the Ludi Romani, a religious festival in ancient Rome held to the honour of Jupiter, whose temple was dedicated on 13 September 509 BCE. The French form of the word not only is a derivative of the Latin Jovis Dies ("Jupiter's Day"), but also alludes to the fact that "Jupiter's day" in Rome, jeudi in French, was a big dies ludi, a day when a great variety of state-funded entertainments that were available for all. This was clearly more suggestive of the Sabbath function of this day in the Cesidian calendar, and so the change to the French form of the word seemed more apt.

‡ Originally was "Saturday", but was changed to Saturnday on 16 April 2006 (P1Φ02E2006) to differentiate it from the Gregorian day which also stands for the Sabbath of the Jews and several Christian sects. The Italian "sabato" and the Interlingua "sabbato" were also changed to differentiate the Cesidian second day of the week from the Jewish Sabbath ("Seventh Day" in Hebrew).

§ Originally was "Neptuday", but was changed to Neptunday on 13 July 2005 (B2Ρ12H2005), thanks to an intelligent multilingual suggestion by Alberto Mardegan.

The Cesidian Months, on the other hand, are 14:

† Originally was "Muhammad", but month's name was changed to Montessori on 2 December 2005 (V2Π24M2005), through a calendar reform process. This became necessary to avoid serious problems that may have occurred through extensive Cesidian calendar use.

This is what it looks like in business card format:

The Cesidian calendar standard in English, Italian, and Interlingua:

† Originally was "Juday", "giovedì", and "jovedi" in English, Italian, and Interlingua respectively, but was changed to Jeuday, giudì, and jeudi on 20 April 2006 (P1Ρ06E2006) to the French form of the Jovis Dies ("Jupiter's Day") on the suggestion of linguist Adalbert Kowal, since this the French jeudi also alludes to "Jupiter's Day" being a dies ludi during Roman times, a day when a great variety of state-funded entertainments that were available for all. This was clearly more suggestive of the Sabbath function of this day in the Cesidian calendar, and so the change to the French form of the word seemed more apt. The English Jeuday and the Italian giudì are respectively Anglicised and Italianised forms of the French jeudi, while the Interlingua form jeudi, is straight from the French.

External links

• CMT format and standard (URL: ecto.pbworks.com/cmt)
• Cesidian calendar — PDF file
• Cesidian calendar card — PNG file 
• The 14 Cesidian calendar holidays 
• Cesidian calendar holidays 
• Sunrise and Sunset at Cyberterra (CMT)  
• Swatch Internet Time