.: Julian-Gregorian-Dee Date Calculator Testimonials :.

I use Chinese Calendrics and Julian-Gregorian Date Calculator to help analyzing the phenomenological changes in China during the past 2000 years. The two programs can be used together to convert dates accurately between the Chinese and Western calendars.

— Dr Haolong Liu
Institute of Geographical Sciences and Natural Resources Research
Chinese Academy of Sciences, Beijing
July 4, 2020

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Your products and service are outstanding.

— John Y., July 19, 2018

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If interested in reliable quick conversion from Gregorian to Julian and Dee-Cecil calendar dates with vernal equinoxes this is the tool to use. Adding/subtracting years, months, weeks and days work like a charm. The 'Julian day number' and 'day of the week' feature make this program a handy asset for all calendar enthusiasts. The online user manual gives a good in-depth overview of all features.

— Wolfram Oehler, March 30, 2016

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This is a great program for family history.

— Bonnie Baker, January 3, 2010

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