Gregorian dominical cycle
(Q90711969)
cycle of 7-day weeks in a solar calendar over 400 years (Gregorian and Julian dominical cycles first matched on a secular leap year in 1200 AD, with dominical letter BA and a gap of 7 days between their dates)
cycle of 7-day weeks in a solar calendar over 400 years (Gregorian and Julian dominical cycles first matched on a secular leap year in 1200 AD, with dominical letter BA and a gap of 7 days between their dates)
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Current Data About
Gregorian dominical cycle
| (P31) |
(Q90710971)
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| (P361) |
(Q12138)
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| (P580) |
+1200-00-00T00:00:00Z
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| (P921) |
(Q49385)
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| (P2047) |
400
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| (P2534) |
\begin{align} \mathrm{DL}&=DL[(y\bmod 7\times 2+y\bmod 4+c\bmod 4)\times 2\bmod 7], \\& \begin{cases} DL[0]=\mathrm{'G'},\quad DL[1]=\mathrm{'F'},\quad DL[2]=\mathrm{'E'},\\ DL[3]=\mathrm{'D'},\quad DL[4]=\mathrm{'C'},\quad DL[5]=\mathrm{'B'},\\ DL[6]=\mathrm{'A'}. \end{cases} \end{align}
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| (P6104) |
(Q8487137)
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other details
| aliases |
Gregorian cycle |
| description | cycle of 7-day weeks in a solar calendar over 400 years (Gregorian and Julian dominical cycles first matched on a secular leap year in 1200 AD, with dominical letter BA and a gap of 7 days between their dates) |