Solar Calendar

This is just a calendar with easy navigation.
In addition to the normal Gregorian calendar, it includes experimental Seasonal calendar in several variations. This calendar is bound to equinoxes and solstices (approximately) - so that spring starts around spring equinox, summer around summer solstice, autumn around autumn equinox, and winter around winter solstice.
This results in more natural alignment of seasons, meaning less complaints about no snow in December or too much snow in March, or raining in June (depends on your location).
More information in the help section inside of the application.