is there a graph online that can tell you the length of a day(sunlight) based on the longitude and latitude?

Question

can the site also break down a chart over a year based on the latitude and longitude that you give

Answer 1

Ref. 1 is a daylight length calculator, and ref. 2 is a rather low-resolution graph for a few latitudes.

Answer 2

You might be looking for a time zone map or a daylight savings time calculator. Check out:

http://aa.usno.navy.mil/graphics/TimeZoneMap2004.png
http://webexhibits.org/daylightsaving/b.html