| Italy | calendar for Rome (Italy) [also Portugal, Spain, and parts of Poland] created by subtracting the days 5-14 October from the year 1582. |
| France | calendar for France created by subtracting the days 10-19 December from the month of December 1582. |
| Bavaria | calendar for Bavaria and other South German provinces created by dropping the days 6-15 October from the year 1583. |
| Austria | calendar for Austria [also Bohemia and Slovakia] created by dropping the days 7-16 January from the year 1584. |
| Lucerne | calendar for the Catholic cantons of Switzerland [e.g., Lucerne] created by dropping the days 12-21 January from the year 1584. |
| Hungary | calendar for Hungary [also parts of Poland] created by dropping the days 22-31 October from the year 1587. |
| Norway | calendar for Norway [also Denmark and many North German provinces] created by dropping the days 19-28 February from the year 1700. |
| Zurich | calendar for the Protestant cantons of Switzerland [e.g., Zurich] created by dropping the days 1-11 January from the year 1701. |
| England | calendar for the United Kingdom (England, Scotland, Wales, Ireland, and the British colonies created by dropping the days 3-13 September 1752. |
| Russia | calendar for Russia and the other provinces of the former U.S.S.R. created by dropping the days 1-13 February from the year 1918. |
| Greece | calendar for Greece created by dropping the days 10-22 March 1924. |
| Turkey | calendar for Turkey created by dropping the days 19-31 December from the year 1926. |
| Julian | generates a Julian calendar for all input dates |
| Gregorian | generates a Gregorian calendar for all input dates |