UniCal - Calendar Converter

Would like to know your birth date in the French Revolution calendar? 
What was the Hebrew or Islamic date on the day of your wedding? 
What is the celebration and the zodiac sign for tomorrow in the Chinese calendar? 
What was that date in the Maya or Babylonian calendar?
Would you like to be alerted each day with the saint or other celebrations of today?

This app converts any given date into the corresponding Gregorian (most common), Babylonian, Buddhist, Chinese, Coptic, Egyptian, Ethiopian, French Republican, Greek (Athenian), Hebrew, Hindu (lunar), Indian, Islamic, Julian (Roman), Maya (long count, Tzolk'in and Haab') or Persan calendars. It also can create daily alerts for the celebrations for any calendar.

The app includes active web links for details on calendars, saints, symbols, zodiac and various date elements of the calendars.