The transition from Julian to Gregorian Calendar.
Erling Poulsen
- October 15th 1582
- Italy, Spain, Portugal and Catholic parts of Poland. Friday October 15th came after Thursday October 4th.
- December 20th 1582
- France and Lorraine. Monday December 20th came after Sunday December 9th.
- January 1st 1583
- Holland (Brabant, Flanders, Hennegan and some provinces to the south). Saturday January 1st came after Friday December 21st.
- October 16th 1583
- Catholic parts of Germany. At first Monday February 21st 1583 should succeed Sunday February 10th, but this did not work. Later it was decided that Sunday October 16th should succeed Saturday October 5th.
- 1583 and 1584
- Austria
- During October to December 1583.
- Tyrol
- Sunday October 16th came after Saturday October 5th.
- Carinthia (Kärnten) and Styria (Steiermark)
- Sunday December 25th came after Saturday December 14th.
- Bohemia, Moravia (Mähren) and Lusatia (Lausitz)
- Tuesday January 17th 1584 came after Monday January 6th.
- Silesia (Schlesien)
- Monday January 23rd came after Sunday January 12th.
- Catholic parts of Switzerland
- Sunday January 22nd came after Saturday January 11th.
- November 1st 1587
- Hungary. Sunday November 1st came after Saturday October 21st.
- December 25th 1590
- Transylvania (Siebenbürgen). Tuesday December 25th came after Monday December 14th.
- September 2nd 1610
- The duchy of Prussia. Thursday September 2nd came after Wednesday August 22nd.
- March 1st 1700
- Protestant Germany, Denmark and Norway. Monday March 1st came after Sunday February 18th.
- 1700
- Holland
- Gelderland
- Monday July 12th came after Sunday June 30th.
- Utrecht and Overijssel
- Sunday December 12th came after Saturday November 30th.
- Friesland and Groningen
- Wednesday January 12th 1701 came after Tuesday December 31st.
- January 12th 1701
- Switzerland (Zurich, Bern, Basel, Schaffhausen, Gent, Mühlhausen and Biel). Wednesday January 12th 1701 came after Tuesday December 31st.
- September 14th 1752
- England and Scotland with colonies. Thursday September 14th came after Wednesday September 2nd.
- March 1st 1753
- Sweden. In the year 1700 it was decided to cancel the intercalary days for forty years, which was done that year, but not in 1704 and 1708, I don't know why. So until 1712 they neither had Julian nor Gregorian Calendar. Later it was decided to return to the Julian Calendar by having an extra intercalary day (February 30th) in 1712. Finally in 1753 Thursday March 1st came after Wednesday February 17th.
- 1873
- Japan. Before Japan had a nonjulian calendar.
- 1912
- China. Before China had a nonjulian calendar.
- January 1st 1914
- Turkey. Before Turkey had an Islamic calendar.
- February 14th 1918
- Russia. Thursday February 14th came after Wednesday January 31st.
- April 14th 1919
- Romania. Monday April 14th came after Sunday March 31st.
- March 1st 1923
- Greece. Thursday March 1st came after Wednesday February 15th.
Number of days the Julian date is behind the Gregorian date:
- 1582 - 1699
- 10 days
- 1700 - 1799
- 11 days
- 1800 - 1899
- 12 days
- 1900 - 2099
- 13 days
- 2100 - 2199
- 14 days
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