Welcome to the official WinDate Calculator website!

Version 2.5 now available!











What is WinDate Calculator?

Simply put, WinDate Calculator gives you the ability to perform calculations with dates without having to manually thumb through a calendar. With this handy software for the Windows PC desktop, you can:
  • work with any dates between Sept. 14, 1752 (the official beginning of the English Gregorian calendar) and Dec. 31, 3999
  • perform calculations by days, weeks, months, or years
  • define your own count criteria
  • mark recurring holidays
  • print calculation results
  • copy & paste calculation results into any accepting text based application using your choice of date formats
  • convert Gregorian dates to Julian or vice versa
  • display the week number for any date you select
  • optionally add to your Windows Systray
  • resize the window to a single month calendar view for a handy calendar reference



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Last Updated: 24-Mar-2011
Webmaster: S. L. Welch
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