The world is going through a tumultuous period, with many nations experiencing division and conflict while the planet really demands a global consensus to preserve life.
To encourage justice, peace and forgiveness the present calendar proposes to dedicate a week every year for these pursuits. A good way to bring about "peace" is to have fun together, so it is expected to be a time of celebration where everyone is welcome. But there could also be symbolic actions to bring about "justice", as a reminder that nobody should be considered above the law.
The word umugaca [oomu-gacha] comes from the name of a soft grass on which to sit and resolve conflicts.
The Umugaca week (or Justice, Peace and Forgiveness week) starts on a Sunday and comes every 364 days. Over the years it slowly passes through the calendar, moving from the end of December to the beginning of January. It takes 293 years for the Umugaca week to complete a full circle and come back to its original position.
Calendar Year[]
The usual Gregorian calendar years can be used to write dates, but the official Umugaca Calendar year begins on 1 March. The official "original" position of the Umugaca week is from Sunday 25 to Saturday 31 December. That was the case in Umugaca calendar year 0000 that went from March 1999 to February 2000 (2 March 1999 to 1 March 2000 in the Gregorian calendar).
Leap Days[]
Leap days are added at the end of the calendar year, the 29 February. The Umugaca calendar leap years usually repeat every four years.
In a non-leap year the Umugaca week starts one day earlier than previous year. However, when Umugaca begins on a day multiple of five the year is leap and next Umugaca starts two days earlier.
There are 71 dates in which the day number is multiple of five in a year. By the time the Umugaca week completes a full circle 293 years have passed. That makes a 293-year leap cycle with 71 leap days (suggested by Karl Palmen).
The average year length is:
The Umugaca week was in its original position in year 0000 and it was a leap year in this calendar.
| Year | Begins 1 March | Ends 29 February | Umugaca starts | Umugaca ends |
|---|---|---|---|---|
| 0000 | 1999 | 2000 | 25 December | 31 December |
| 0004 | 2003 | 2004 | 20 December | 26 December |
| 0008 | 2007 | 2008 | 15 December | 21 December |
| 0012 | 2011 | 2012 | 10 December | 16 December |
| 0016 | 2015 | 2016 | 5 December | 11 December |
| 0020 | 2019 | 2020 | 30 November | 6 December |
| 0024 | 2023 | 2024 | 25 November | 1 December |
| 0028 | 2027 | 2028 | 20 November | 26 November |
| 0032 | 2031 | 2032 | 15 November | 21 November |
| 0036 | 2035 | 2036 | 10 November | 16 November |
| 0040 | 2039 | 2040 | 5 November | 11 November |
| 0045* | 2044 | 2045 | 30 October | 5 November |
Note: the leap year is delayed by one year in year 0044 because October has 31 days, which means the 1 November start in 0043 is followed by a 31 October start in 0044 and a leap day is added one year later (0045).