Days between dates. The historical version.

Calculates number of days between two dates taking in account the date of transition to Gregorian calendar.

This page exists due to the efforts of the following people:

The calculator below gives number of days between two dates, taking in account the calendar system in use in a country on a given date. Simply select a country or a calendar system for the date1 and the date2 and get your results.
The calculator may produce several different results for the countries where were several calendar systems on the given date.


Days between dates. Historically accurate version.

Years, Months, Days
Details and alternative versions
Calendars in selected countries

The calculation uses the Calendars and countries table, which contains time period information of Julian and Gregorian calendars and calendar eras adoption for a country. The calendar eras are listed in Calendar Era directory.