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| Pages: << 1 >> Board >> CHRONOLOGY >> Calendar systems >> Project calendar reform suggestion |
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Jens Schneider
(offline)
Administrator   Beiträge: 16
Geschlecht:  Mitglied seit: 11/01/2003 Germany 
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In this forum the advantages and disadvantages by to ski-end shortly new calendar reform suggestions one introduces. With the help of your opinions and once a calendar reform suggestion should develop for own suggestions sometime. Ideal way should actually begin this discussion in this forum only then if I presented the different new calendar reform suggestions on the homepage. On the other hand I do not have anything against an earlier beginning of this discussion. [Note: This project is led also at the same time on the German site of these homepage. So far it me possible is I several contributions in the German language will summarize and this contribution on this forum will communicate. Turned around naturally also!] On the homepage are the following new calendar reform suggestions: - The French revolutionary calendar - The positivist calendar - The Cotsworth calendar - The world calendar - The Annus Novus Decimal Calendar - The 13 month calendar form calendarreform.org - The 12 month calendar I form calendarreform.org - The 12 month calendar II form calendarreform.org - The 12 month calendar III from calendarreform.org - The Aristean perpetual calendar Further new calendar reform suggestions follow still. Carpe diem! (So far this contribution was 3 time edited, as last of [url=http://www.kalendersysteme.de/cgi-bin/forum/en-us/sbb.cgi?&a=viewprofile&name=,_self][/url] at @ ) |
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Jens Schneider
(offline)
Administrator Beiträge: 16
Geschlecht: Mitglied seit: 11/01/2003 Germany
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One calendar year does not correspond accurately exactly tropical year. [Notes:] Tropical year: It is the period, which needs the sun, in order to move from spring point to spring point. It is the actual calendar year. Spring point: That is the intersection of celestial equator and ecliptic. The celestial equator is the projection of the earth equator to the apparent sky ball. The ecliptic or animal circle line is the apparent sun course at the sky ball. On it the sun puts its apparent annual movement back. The pring point is called also Aries point. 1 tropical year = 365.2421875 days = 365d 5h 48m 45s Therefore a switching regulation must be considered for a new calendar reform suggestion. Here the following considerations must be considered: 1 Position 2 Calculation 3 Designation For the position of the switching regulation 4 possibilities are possible: 1.1 At the end of the second monthly 1.2 In the center of the yearly 1.3 At the end of the last monthly 1.4 Other regulations 1.1 At the end of the second monthly: This suggestion is historically conditioned. The Gregorian calendar took over this regulation of the Julian calendar.By the shifting of the yearly beginning in the Julian calendar from 1st March on 1st January the switching regulation was shifted by the end of the last monthly on the end of the second monthly. 1.2 In the center of the yearly: This suggestion contains the idea the calendar symetrisch to represent. 1.3 At the end of the last monthly: This suggestion makes possible to arrange it even the months. Many historical calendar systems took over this suggestion. - The calendar of the Roman republic - The calendar of Ptolemaios IIIrd Euergetes Ist - The Ethiopian calendar - The Coptic calendar - The Persian calendar - The Islamic calendar - The calendar of Omar Chayyam - The French revolutionary calendar - The positivist calendar - The Annus Novus Decimal Calendar - The 13 month calendar from calendarreform.org 1.4 Other regulations: When copy example can here the Jewish calendar is called, which contains also a complicated switching regulation. The position of the switching regulation is with all suggestions at the end of a monthly. The switching regulation even into the center of a monthly to shift would not be to be recommended according to my opinion, because as one should this designating. For the calculation of the switching regulation 2 possibilities are possible: 2.1 Calculation after the Gregorian calendar 2.2 Calculation more exactly than the Gregorian calendar 2.1 Calculation after the Gregorian calendar - every 4 years plus an intercalary day - every 100 years no intercalary day - every 400 years plus an intercalary day 1 average year = 365 + 1/4 - 1/100 + 1/400 = 365,2425 = 365d 5h 49m12s 2.2 Calculation more exactly than the Gregorian calendar - every 4 years plus an intercalary day - every 100 years no intercalary day - every 400 years plus an intercalary day - every 4000 years no intercalary day 1 average year = 365 + 1/4 - 1/100 + 1/400 - 1/4000 = 365,24225 = 365d 5h 48m 50,4s - every 4 years plus an intercalary day - every 100 years no intercalary day - every 400 years plus an intercalary day - every 4000 years no intercalary day - every 400000 years minus one day 1 average year = 365 + 1/4 - 1/100 + 1/400 - 1/4000 - 1/400000 = 365,2422475 = 365d 5h 48m 50,184s - every 4 years plus an intercalary day - every 100 years no intercalary day - every 400 years plus an intercalary day - every 3600 years no intercalary day 1 average year = 365 + 1/4 - 1/100 + 1/400 - 1/3600 = 365,242... = 365d 5h 48m 47,9...s - every 4 years plus an intercalary day - every 128 years no intercalary day 1 average year = 365 + 1/4 - 1/128 = 365,2421875 = 365d 5h 48m 45s = 1 tropical year - every 4 years plus an intercalary day - every 100 years no intercalary day - every 400 years plus an intercalary day - every 3200 years no intercalary day 1 average year = 365 + 1/4 - 1/100 + 1/400 - 1/3200 = 365,2421875 = 365d 5h 48m 45s = 1 tropical year - every 4 years plus an intercalary day - every 100 years no intercalary day - every 400 years plus an intercalary day - every 4000 years no intercalary day - every 16000 years minus one day 1 average year = 365 + 1/4 - 1/100 + 1/400 - 1/4000 - 1/16000 = 365,2421875 = 365d 5h 48m 45s = 1 tropical year The calculation of the switching regulation should be worse in no case than those of the Gregorian calendar. For the designation of the switching regulation 2 possibilities are possible: 3.1 With weekday designation 3.2 Without weekday designation 3.1 With weekday designation: The 2000 yearly counting of the weekdays is not interrupted by this suggestion. 3.2 Without weekday designation: The 2000 yearly counting of the weekdays must be interrupted. During the considerations of the computation and the designation of the switching regulation it would have to be also considered whether in one common year 365 or 364 days ((52 * 7)+1) are used. Here the question arises whether the 365th day a weekday designation receives or not. Besides it plays also a crucial role whether 7 -, 5 - daily or different one week is used. Carpe diem! (So far this contribution was 3 time edited, as last of [url=http://www.kalendersysteme.de/cgi-bin/forum/en-us/sbb.cgi?&a=viewprofile&name=,_self][/url] at @ ) |
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