Date Distance Calculator

A Windows tool for calculating the distance between two dates (inclusive and exclusive) between 1 January 1155 and the present day, according to English reckoning.

MIT License Copyright (c) 2017 M. H. Beals


Download directly here.

If you receive an error message, you may need to manually update your installation of Windows to include the Visual C++ Redistributable for Visual Studio 2015.

Instructions for use:

Simply select the dates for which you wish to know the number of days in between, clicking exclusive or inclusive as appropriate.This tool assumes a change from the Julian to the Gregorian calendar in 1750/1 (British reckoning) and should not be used for Gregorian systems prior to or including that year.


As an unsigned programme, you may receive a warning when running on Windows.

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