Determination of the day of the week not a Gregorian leap year, (but 19 in the Julian column indicates that it "is" a Julian leap year, as are all Julian "x"00 years). 20 indicates that 2000 is a leap year. Use Jan and Feb only in leap years. For determination of the day of the week (1 January 2000, Saturday) For determination of the dominical letter (2000, BA) For determination of the doomsday (2000, Tuesday) Note that the date (and hence the day of the week) in the Revised Julian and Gregorian calendars is the same from 14 October 1923 to 28 February AD 2800 inclusive and
Dienstag aus Licht As was the case for most of the operas in the "Licht" cycle, component sections of "Dienstag" were commissioned and composed separately, and given seriatim premieres. The first component of this opera was in fact the first part of the entire "Licht" cycle to be composed: "Jahreslauf" (Course of the Years), which became the first act of "Dienstag", was originally written in 1977 as an independent piece for gagaku ensemble. Stockhausen finished it in Kyoto in the fall of 1977, and it was premiered by the Imperial Gagaku Ensemble at the Tokyo National Theatre on 31 October. This version is