SunCalc

A little online application with interactive map that shows sun movement and sunlight phases (with dawn, sunrise, sunset and dusk times) during the given day at the given location.
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add topology overlay

Add topology map to the satellite overlay. Satellite overlay is wonderful. Add topology layer if possible.
Dadofenzo, 26.10.2017, 02:11
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show 2 time lines eg, usual waking hours, 8am-10pm

I am using your excellent site to plan tree planting and look at shading... I want to show the times people are generally awake, so, not sunrise in the summer... if you could help me calculate shadows for different heights of trees, great! ;)
asdf, 01.11.2017, 22:28
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Fix screen layout conflicts w/google

Your Weather forecast link hides google's zoom out icon, and your About SunCalc link partially covers google's Satellite view option on my system (Mac running Safari and Chrome).
David Murray, 03.11.2017, 19:05
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The weather forecast link gets in the way of zoom

The weather forecast link gets in the way of zoom - great idea to have it for the current co-ordinates but would be good to move it into it's own area or have it as an option somewhere else. Great website by the way!
Josh Lamb, 04.11.2017, 09:06
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I need direction and elevation above horizon (deg)SUGGESTION: in a table for each day/year, as an input for the spreadsheet to manually add PV shading objects around the house.

The purpose is to calculate best orientation for solar hot water and PV systems. The requested direction and elevation above the horizon is the max yield. This is the minimum request (4000+ likes). In practice, topology, nearby trees and man...
Zoran Bozic, 04.11.2017, 13:52
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an improvement to sunrise and sunset times, would be addition of

...horizon coordinates for the points of solar/Earth horizon intersection, showing something like 90 degrees sunrise and 270 degrees sunset about the times of the equinoxes ... counting from zero degrees at due north ... I have seen similar...
Brian Caffrey, 05.11.2017, 11:53
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You should add an option to have the moon instead

Basically have an option to chose the moon instead of the sun.
Anonymous, 09.11.2017, 08:23
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Add solar radiation?

If you want to calculate the savigs from having a solar panel it is very useful to know the solar radiation at a certain place.
Synnøve , 17.11.2017, 12:27
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See sunrise, sunset times shown in local times.

When I moved the cursor from Michigan to Norway to see the SunCalc times in my cousin's town, it was showing sunrise/sunset times in the eastern time zone, not local Norway time. I figured it out doing the math, for example SunCalc was showing for...
Curtis Koth, 26.11.2017, 15:58
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Azimuth and declination would be helpful

Using Suncalc to set up photo shoot. Need azimuth.
Jeffrey Rothburd, 29.11.2017, 18:43
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Wattage calculator vs sun angle for day, month, yr

It would be nice to estimate solar electric generation rates vs. sun angle by the day, month and year.
jjm0580@gmail.com, 04.12.2017, 17:22
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Tell what time zone I am looking at.

I just need it to say what time zone it is currently displaying.
Carlos, 05.12.2017, 14:26
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lat/long

include the position of the point. latitude longitude
william gates, 05.12.2017, 17:34
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Change definition/tooltip of sunrise/sunset

Change definition/tooltip of: 1. sunrise to "A period of time between the moment when the top of the sun disc touches the horizon and the moment when the bottom of the sun disc touches the horizon on sunrise" 2. sunset to "A period of time...
Fedor Parfenov, 10.12.2017, 11:32
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automatic update

Saving as favourite site the page of my city, in the address is saved also the day and the hour: http://suncalc.net/#/45.4740,9.2125,17/2017.11.13/09:22. So everytime I open the page I see a november situation at 22 past nine in the morning.. Can...
martha, 16.12.2017, 08:07
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Great tool. Compass bearings would be nice

I wish the tool would show compass points. It is interesting to see the number of degrees of arc the sun scribes at winter and summer solstices.
George Fitzpatrick, 17.12.2017, 19:59
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The option of standard instead of military time.

I'm delighted to find this well thought out useful app. But I'm too old to learn military time, I'll give it a try.
Muriel, 22.12.2017, 14:22
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have the time at the location being viewed.

I am looking at a location in a different time zone to the one I am now in, but time line is in my local time zone.
Will, 28.12.2017, 16:35
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see the same for the moon

Rielle, 01.01.2018, 03:05
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August sunset line absent

In August, the sunset line was missing for a few weeks. I would be great to fix that. Splendid work otherwise
chriss, 17.01.2018, 13:26
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Know projection of sun's rays onto plane (solar pv)

In order to understand projection of sun's rays on roof across day, calculate the intensity of the sun's rays
chriss, 17.01.2018, 13:32
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teach child beginning usage

show picture of child smiling at discovery. Show one example of how child can use the app
l, 17.01.2018, 15:21
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Adjust the timezone.

I need to adjust the time zone so I can get a more accurate sunrise/sunset.
Kyle, 18.01.2018, 01:02
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satellite view

id like to have google maps satellite view!
Mike, 26.01.2018, 02:45
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know which coffee shops are sun facing

It would be really cool if the app could give suggestions on where to find locations for sunny spots such as coffee shops/ park benches.
Kurt Schutte, 05.02.2018, 09:08
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Add compass bearings for the rise/set

James, 04.02.2018, 17:10
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have the data in hourly format on Excel spreadshee

need the data to perform statistical analysis with other data
tom, 06.02.2018, 07:36
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Thanks from Sydney , Australia

dan, 06.02.2018, 21:48
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see the shading of areas with suggested times

I would like to see how trees/landscape/buildings block the sun throughout the day
Lorraine Tuths, 10.02.2018, 18:05
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measure distance

I'd like to be able to measure the distance between multiple points on the map. An example of this can be found on google maps if you right click.
g, 13.02.2018, 02:41
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