The Program demonstrates local time and date for chosen calendar (Julian, Gregorian, Indian, Ancient Egyptian, Coptic, Ethiopian, Hebrew, Islamic, Khayam, Persian, Slavic-Aryan) for various locations on Earth, number of the Julian Day, number of the Day in the Year, number of Days in the Year, local time of Sun/Moon rise/set, Moon age, dates of vernal/autumnal equinox and summer/winter solstice, time and type of solar and lunar eclipses, horizontal coordinates of the Sun, Moon and Planets, as well as holidays and memorial days of many countries and religions of the world: Christianity, Judaism, Islam and Ingleaism. Count of time is possible taking into account Daylight Saving time corrections and the fact that in some calendars (Hebrew, Islamic etc.) change of date happens at the Sunset or Sunrise. The program allows to save calendar with the list of events in HTML document for a year or any month of the year.