Windows software to convert between Julian, Gregorian, Dee and Dee-Cecil calendar dates in various formats, and to add and subtract a number of days, weeks, months and years to or from a given date. Also displays a sequence of Gregorian and Dee (or Dee-Cecil) dates for up to consecutive 800 days, and dates and times of vernal equinoxes in the Gregorian and Dee(-Cecil) calendars for up to 800 consecutive years. Times of vernal equinoxes may be calculated on the basis either of mean solar time or apparent solar time.

Win2000, Win7 x32, Win7 x64, Win98, WinVista, WinVista x64, WinXP

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