HEATKEYS

University of Oregon Solar Radiation Monitoring Laboratory Web Site

Sunrise, sunset, dawn and dusk times for the whole year in a graph, day length and changes in lengths in a table.

The Astronomical Applications Departmentof the U.S. Naval Observatory computes, from fundamental astronomicalreference data, the position, brightness, and other observablecharacteristics of celestial bodies, as well as the circumstancesof astronomica...

This site includes lots of information that is time and date related, such as yearly and monthly calendars, countdown counters and the world clock which shows current time in cities all over the world.

Build It Solar will help people with Do It Yourself skills build solar projects that save money and reduce pollution. It is a "hands-on" site with detailed plans for solar projects including solar space heating, water heating, passive sola...

What

SunriseSunset.com provides a free service that creates a custom calendar with sunrise, sunset and twilight times for any location around the world.

The climate in the United States. Information regarding the temperature, precipitation, and sunshine for more than 5000 cities and locations in the United States. See the climate charts and averages for your city.