This version of the Square One JavaScript Solar Position Calculator calculates solar position values for each 1/2 hour over the selected day of the year. The data is displayed in the text editor at the bottom, allowing you to copy/paste it to wherever you need it.

Your first step in the use of this tool is to set the Latitude and Longitude of the desired location - making sure to first set the TimeZone value as this will make entering the longitude easier. In addition to the 1/2 hourly Sun positions throughout the day, it also calculates Sunrise / Sunset times, the Declination and theEquation of Time. Select the Calculate button to perform the calculation and populate the list.

Javascript Solar Position Calculator II

Useful References

Other Solar Position Calculators

http://www.cs.ucla.edu/~simonw/sunpos/
http://susdesign.com/sunangle/

NASA Information on Sundials

http://liftoff.msfc.nasa.gov/academy/earth/sundial/sundial.html