Month:	Day:	Year (e.g. 2009):

Equation of Time (minutes):	Solar Declination (degrees):	Sunrise:	Solar Noon:	Sunset:	Time Zone
					Hawaii or Local
					UTC

Directions:
Select a location from the 'location' pull down menu. The program retrieves the current date from your computer, and fills the month, day and year fields. To perform calculations for a different date, simply select a month in the pull down menu, and enter the day and four digit year in the appropriate input boxes. When entering a day or year, you will need to click the "Calculate Sunrise/Sunset" button to update the results for this date.

Equation of Time (according to Wikipedia):
The equation of time is the difference between apparent solar time and mean solar time, both taken at a given place (or at another place with the same geographical longitude) at the same real instant of time. Apparent (or true) solar time can be obtained for example by measurement of the current position (hour angle) of the Sun, or indicated (with limited accuracy) by a sundial. Mean solar time, for the same place, would be the time indicated by a steady clock set so that its differences over the year from apparent solar time average to zero (with zero net gain or loss over the year).

Solar Declination (δ):
The declination of the Sun is the angle between the rays of the sun and the plane of the earth's equator. Since the angle between the earth axis and the plane of the earth orbit is nearly constant, δ varies with the seasons and its period is one year, that is the time needed by the earth to complete its revolution around the sun.

Acknowlegement:
This sunrise and sunset calculator was modified from the NOAA improved version designed by Chris Cornwall, Aaron Horiuchi and Chris Lehman.

Carole Kwiat, Principal Broker and Vacation Rental Manager
Escape to Extraordinary, LLC
72-4084 Akahipu'u Place Kailua-Kona, HI 96740
Phone (808) 987-7273
or
(808) 325-0882
Fax (866) 521-6260

cakwiat@yahoo.com

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