Moon calendar: - Lunar days, the start and end of lunar day; - Solar and lunar eclipses for any year (a type of eclipse, date and time of eclipses); - Characteristics of lunar days; - The moon's age, the time of sunrise - sunset, moonrise - moonset; - Sign of the zodiac for the Sun and the Moon at a given time; - Phases and illumination of the Moon; - The lunar day determination for a given calendar date; - Determination of the lunar day for the current and the specified time; - Equinoxes and Solstices; - Perigee and apogee; - Supermoon and Micromoon; - Civil twilight; - Nautical twilight; - Astronomical twilight; - Astronomical or solar noon; - "Gold" or "magic" hour; - "Blue hour"; - The duration of day and night; - The ability to find the location on the map and input the coordinates manually. *** Chinese astrology: - the dates of commencement of the new year on the Chinese Lunar and Solar calendar; - the full name and the characteristics for Chinese year of Feng Shui. - lunar and solar months; *** Personal characteristics of a person: - the age of a person; - astronomical, astrological and sidiric zodiac; - the four pillars of the fate of Bazi; *** - The dates for the celebration of Easter: Orthodox (old and new style), Catholic, Jewish Passover (Pesach)