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.
I would like to...
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5473 votes Vote

I need direction and elevation above horizon (deg)

As i use the slider, and the direction of sun changes, can i get direction (in degrees) and elevation of the sun at that point (degrees above horizon)?
Response from the site administrator
Mourner, 07.04.2010
Sure, though I need to think about what is the best place to put this information...
uber, 07.04.2010, 15:28
2413 votes Vote

Show shadow line from an object of X height

User selects the height of an object - maybe representing a tree or a building. SunCalc calculates the length of the shadow and displays it from the location (it would be the opposite of the orange sun position line). This would be extremely...
Response from the site administrator
Mourner, 09.04.2010
Thanks, I'll consider this! Seems useful, the only hard thing is making a good simple UI for this.
Jim Dantin, 07.04.2010, 23:36
1812 votes Vote

Make a mobile version

Make a mobile SunCalc version optimized for viewing under iPhone / Android browsers.
Mourner, 04.04.2010, 13:20
1651 votes Vote


Moon movement, Moon's phases, the distance to Moon.
UR6LAD, 06.04.2010, 22:04
1440 votes Vote

Add an option to display time in local timezone.

Currently SunCalc shows all times in the visitor's timezone. It would be great to make an option to display them in local timezone (tied to the current location).
Mourner, 04.04.2010, 13:17
1225 votes Vote

Add slider for days of year like the one for time

Mourner, 04.04.2010, 15:28
966 votes Vote

Nothing. You are my hero for a day. Thank you!

Nothing. You are my hero for a day. Thank you!
a, 13.06.2011, 19:00
817 votes Vote

add degrees above horizon at time of day on arc

Add degrees that sun is above horizon at time of day on arch. That way you can see if the sun is going to clear a hill or building at a certain time of day at a certain location. Add this to a degrees relative to magnetic north and, with a...
Al Bundy, 31.08.2010, 18:17
681 votes Vote

Use elevation information from Google Maps API v3

Landscape features (such as mountains) can greatly affect sunrise/sunset time. Since Google does provide elevation information, it makes sense to use it to adjust sunrise/sunset time (and even sunrise/sunset location a little bit when it touches...
extesy, 06.04.2010, 21:02
631 votes Vote

put equinox, winter & summer solstice buttons

Buttons that, when clicked, would move the sunrise/sunset lines where they would be at equinox and the summer and winter solstice. That would avoid changing the calendar to know what's the sun path during the extremes of sunlight (winter and...
Claudio, 11.05.2011, 00:38
593 votes Vote

Add a compass overlay to the map

If I'm standing at the location I need to know how to orient myself and the map...
Chris Bentley, 09.03.2011, 02:41
509 votes Vote

Congratulate you on a wonderful little app!

So simple and yet so useful, great work Vladimir!
Alex Smalley, 27.01.2012, 09:37
1 comment
372 votes Vote

add the length of the shadows

add the length of the shadows, depending on the height of the source
ant, 29.04.2010, 10:01
299 votes Vote

Shadow Man

Create an icon of a man or any other commonly understood shape at the address or location of interest. Create a shadow for the man and move the shadow depending on the sun angle. As a homebuyer, i'm looking for good sunlight in a potential...
Amish Naik, 30.01.2011, 16:53
250 votes Vote

Plugin for Google Earth

It'd be handy to have a plugin for Google Earth to combine local and more exact map layers with SunCalc's data.
Hendrik Väli, 12.10.2011, 00:06
240 votes Vote

Save the map as image

Miquel Pons, 22.03.2011, 19:08
222 votes Vote

add degrees relative to magnetic north on arch

Add degrees relative to magnetic north for use with a compass.
Al Bundy, 31.08.2010, 18:12
214 votes Vote

Topographic information to avoid mountains effects

Sunrise and sunset can be affected by the presence of high mountains near our position. This can be solved using our X, Y, Z position and topographic relieve of the area which can alter the actual hours of sunrise or sunset.
Oscar, 04.02.2011, 09:23
1 comment
210 votes Vote

remove Weather Forecast button!!

The weather forecast button is right on top of other key buttons for Suncalc----how can I remove it??
wayne, 24.09.2015, 14:42
169 votes Vote

Overlay my house on the map for planning a garden

Produce a transparency and overlay on Google Maps.
Colleen Taylor, 12.05.2011, 00:35
142 votes Vote

Save specific locations.

I'd like to be able to save specific locations so I can easily refer to them later.
Mike, 01.07.2011, 15:59
137 votes Vote

make 3D version

Istianto, 21.05.2011, 19:17
1 comment
125 votes Vote

show the optimal solar panel direction !!

Show the optimal direction for solar panels to point. I guess that would be solar noon ? Also, I have IE 7 and the time slider is off the screen to the right. Thanks Philip
Philip, 20.04.2011, 02:20
115 votes Vote

Create a REVERSE Search

Create a "Reverse Search" to make it easy to determine the date when sunset (or sunrise) will occur on a specific azimuth.
HDL-NYC, 20.06.2010, 22:06
100 votes Vote

Make a iPad suncalc version

Jose Luis Rodriguez, 04.02.2011, 18:14
87 votes Vote

add terminator line -line separating day and night

i'd like to have the terminator line and, naturally, shade on the map where it's night.
Response from the site administrator
Mourner, 09.04.2010
I agree that this would be very useful, though I'm not sure I'll be able to implement it, not a trivial task on the client-side...
name, 07.04.2010, 02:59
82 votes Vote

tide time table

Very useful for surfers etc. Also a boon for photographers and the like for capturing the right type of sunset shot ! A big " ask " I know, but would be an outstanding addition.
John Haley, 02.09.2010, 10:42
79 votes Vote

Show duration of time periods in detailed information box

It takes a while to substract two time values to see, in example, the duration of daylight period, so it will be useful to show it somehow in detailed information box
Response from the site administrator
Mourner, 06.04.2010
Great idea, looks like something to be added very quickly :)
SaintGrey, 06.04.2010, 21:30
79 votes Vote

Move the links so they don't cover the map tools

The map/satellite toggles and the map zoom in/zoom out tools are covered by the About Suncalc and the Weather link boxes
FAB, 28.09.2015, 22:16
66 votes Vote

color correspond sun height

If sun in top => color is yellow, sun go down => color become red.
Sergio, 06.04.2010, 19:43
1 comment

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