Sun Angle Calculator with Help

This tool calculates solar angle data based on date, time, and location. Please read the important instructions, notes, and FAQ pages before using this tool. Click on any input or output name for additional details.

INPUTS
longitude		time
latitude		time zone
date		time basis
year		daylight savings
elevation		zero azimuth



OUTPUTS
altitude angle		declination
azimuth angle		equation of time
clock time		time of sunrise
solar time		time of sunset
hour angle

The Sun-Angle Calculator is copyrighted and provided free of charge by Sustainable By Design. If you find it useful, the author accepts voluntary donations to support its continued development and support. If you wish to donate to support SunAngle, please visit the author's web site.

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Copyright Notice: All photographs, images, concepts, designs, text and other materials herein are the copyright of the Open Photographic Society (OPS) or the relevant named photographer, organization or copyright owner, and may not be used, stored, reproduced or distributed in any way without the express written permission of the Society or the relevant copyright owner. Please direct all relevant enquiries to The Society. All rights reserved.

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Sun-Angle Calculator with Help

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Please Support OPS