Length of Days

The first graph shows how the number of hours from sunrise to sunset change on different locations. Data for two years is shown.

The graphs are generated using the wonderful flot javascript graphing library. If the page is slow and you are using Internet Explorer I can't help you. If it is very slow in other browsers please let me know.

The second graph shows how much the the day-length changes, in hours, each day. (The first derivative of the above.)

Select which locations to show:

(Tip: Turn off all except Quito to see how little variation in day length there is at the equator)

Show custom location

You can add graph for a custom location by providing a latitude/longitude coordinate set below. You could use touch map to find the coordinates.

Latitude    Longitude

Comments

On August 20th 2009 at 10:08 Eridal wrote:

It will be very useful if I can set my own location.

can you provide an easy way to do it?

On August 21st 2009 at 1:54 Jacob Oettinger wrote:

Good idea. I have added the option to provide a custom location that will be added to the graphs.

On August 28th 2009 at 10:11 davesnout wrote:

I've been looking for a site where these graphs are plotted for ages. Found you at last. Thanks for putting this up.

On July 31st 2010 at 22:46 wrote:


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