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1231 Julian calendar / Old style - New style synoptical reference

±1: 1226, 1227, 1228, 1229, 1230, 1231, 1232, 1233, 1234, 1235, 1236
±10: 1181, 1191, 1201, 1211, 1221, 1231, 1241, 1251, 1261, 1271, 1281
January 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728293031
WTFSSMTWTFSSMTWTFSSMTWTFSSMTWTF
February 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728
SSMTWTFSSMTWTFSSMTWTFSSMTWTF
March 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728293031
SSMTWTFSSMTWTFSSMTWTFSSMTWTFSSM
April 1231 (Julian calendar: old style)
123456789101112131415161718192021222324252627282930
TWTFSSMTWTFSSMTWTFSSMTWTFSSMTW
May 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728293031
TFSSMTWTFSSMTWTFSSMTWTFSSMTWTFS
June 1231 (Julian calendar: old style)
123456789101112131415161718192021222324252627282930
SMTWTFSSMTWTFSSMTWTFSSMTWTFSSM
July 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728293031
TWTFSSMTWTFSSMTWTFSSMTWTFSSMTWT
August 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728293031
FSSMTWTFSSMTWTFSSMTWTFSSMTWTFSS
September 1231 (Julian calendar: old style)
123456789101112131415161718192021222324252627282930
MTWTFSSMTWTFSSMTWTFSSMTWTFSSMT
October 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728293031
WTFSSMTWTFSSMTWTFSSMTWTFSSMTWTF
November 1231 (Julian calendar: old style)
123456789101112131415161718192021222324252627282930
SSMTWTFSSMTWTFSSMTWTFSSMTWTFSS
December 1231 (Julian calendar: old style)
12345678910111213141516171819202122232425262728293031
MTWTFSSMTWTFSSMTWTFSSMTWTFSSMTW
±1: 1226, 1227, 1228, 1229, 1230, 1231, 1232, 1233, 1234, 1235, 1236
±10: 1181, 1191, 1201, 1211, 1221, 1231, 1241, 1251, 1261, 1271, 1281

About: Here you can check the Julian and Gregorian calendars side-by-side.

The program can show years from 1 AD to 9999 AD. Before 1582 AD the Gregorian calendar does not exist; British territories have adopted it in 1752; all countries -- before World War Two.

Enter the desired year in the textbox above and push the button "OK". You can also click on the links for previous - next years.

In order to get the correct dates, it is essential to open the exact year and not another one, because the difference between the two calendars vary between the centuries. Check the reference links for more information.

This software is created in the hope that it would be usefull but without any warranty for fitness for a particular usage. If in doubt, please use a pencil to verify the results.

See also: