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Years with Same Calendar as 1231 – Extended Range

The year 1231 had 365 days and started on a středa (Czechia, Julian calendar).

This country was still using the Julian calendar in year 1231. In that calendar system, a Leap Day was added every four years, without the exceptions defined in today's Gregorian calendar. The Gregorian calendar was introduced in 1584. This affects the selection of years listed here.

Years with same starting weekday and equal number of days to 1231
YearCompared to year 1231Since last
710521 years before 
721510 years before+ 11 years
727504 years before+ 6 years
738493 years before+ 11 years
749482 years before+ 11 years
755476 years before+ 6 years
766465 years before+ 11 years
777454 years before+ 11 years
783448 years before+ 6 years
794437 years before+ 11 years
805426 years before+ 11 years
811420 years before+ 6 years
822409 years before+ 11 years
833398 years before+ 11 years
839392 years before+ 6 years
850381 years before+ 11 years
861370 years before+ 11 years
867364 years before+ 6 years
878353 years before+ 11 years
889342 years before+ 11 years
895336 years before+ 6 years
906325 years before+ 11 years
917314 years before+ 11 years
923308 years before+ 6 years
934297 years before+ 11 years
945286 years before+ 11 years
951280 years before+ 6 years
962269 years before+ 11 years
973258 years before+ 11 years
979252 years before+ 6 years
990241 years before+ 11 years
1001230 years before+ 11 years
1007224 years before+ 6 years
1018213 years before+ 11 years
1029202 years before+ 11 years
1035196 years before+ 6 years
1046185 years before+ 11 years
1057174 years before+ 11 years
1063168 years before+ 6 years
1074157 years before+ 11 years
1085146 years before+ 11 years
1091140 years before+ 6 years
1102129 years before+ 11 years
1113118 years before+ 11 years
1119112 years before+ 6 years
1130101 years before+ 11 years
114190 years before+ 11 years
114784 years before+ 6 years
115873 years before+ 11 years
116962 years before+ 11 years
117556 years before+ 6 years
118645 years before+ 11 years
119734 years before+ 11 years
120328 years before+ 6 years
121417 years before+ 11 years
12256 years before+ 11 years
1231selected year+ 6 years
124211 years after+ 11 years
125322 years after+ 11 years
125928 years after+ 6 years
127039 years after+ 11 years
128150 years after+ 11 years
128756 years after+ 6 years
129867 years after+ 11 years
130978 years after+ 11 years
131584 years after+ 6 years
132695 years after+ 11 years
1337106 years after+ 11 years
1343112 years after+ 6 years
1354123 years after+ 11 years
1365134 years after+ 11 years
1371140 years after+ 6 years
1382151 years after+ 11 years
1393162 years after+ 11 years
1399168 years after+ 6 years
1410179 years after+ 11 years
1421190 years after+ 11 years
1427196 years after+ 6 years
1438207 years after+ 11 years
1449218 years after+ 11 years
1455224 years after+ 6 years
1466235 years after+ 11 years
1477246 years after+ 11 years
1483252 years after+ 6 years
1494263 years after+ 11 years
1505274 years after+ 11 years
1511280 years after+ 6 years
1522291 years after+ 11 years
1533302 years after+ 11 years
1539308 years after+ 6 years
1550319 years after+ 11 years
1561330 years after+ 11 years
1567336 years after+ 6 years
1578347 years after+ 11 years
Czechia adopted today's Gregorian calendar in 1584. All previous years are based on the Julian calendar.
1586355 years after+ 8 years
1597366 years after+ 11 years
1603372 years after+ 6 years
1614383 years after+ 11 years
1625394 years after+ 11 years
1631400 years after+ 6 years
1642411 years after+ 11 years
1653422 years after+ 11 years
1659428 years after+ 6 years
1670439 years after+ 11 years
1681450 years after+ 11 years
1687456 years after+ 6 years
1698467 years after+ 11 years
106 years share the calendar of year 1231 in the 1000-year time span from 700 to 1699.
Note that holidays will not match exactly. Selected year is highlighted.

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