solstice

Local time and date for any locations on Earth, 12 calendars, holidays and memorial days of many countries and religions, Sun, Moon, and Planets (coordinates and time of rise/transit/set), vernal/autumnal equinox/solstice, solar and lunar eclipses. Possibility to save calendar with the list of events in HTML document.

EarthWatch (for Windows) displays a beautiful graphical world clock with a dynamic map image of the world showing the day and night areas, time zone hours, a sundial, and an almanac information panel featuring sunrise/sunset times, lunar phase information, and much more -- all in real-time or time-lapse animation.

Live interactive physics simulations let you explore the Solar System (orbits, seasons, gravity, tides, satellites and comets), play snooker (on a full size table) and experiment with Laws of Motion simulations. Now with machines ( pendulum clock and siege engines) bridge, crash and ideal gas simulations and experiments.

Animated weather radar & satellite, local temperature in tray, local weather, internet clock sync, sun and moon rise and set times, animated moon phases, planet positions in the sky, eclipses, equinox/solstice, meteors, month calendar with moon phase icons, full year calendar, 27 holidays, map, aerial photo, topographic map, start & end daylight savings, dictionary, thesaurus, calculator, unique graph of sunrise and set times for entire year.

A program to convert between dates in various Chinese calendars and dates in the Gregorian and Julian calendars, and to find lunar new year's day and leap months for any year in the Chinese Calendar. Can list anniversaries of Chinese lunar dates such as birthdays. Supports 60-year, 60-month and 60-day cycles, includes Chinese names, and allows searching for dates and times of full moons, dark moons, solar terms, equinoxes, solstices and more.