light dark cycle.

Hopefully one of you will have a very simply answer for me, but can someone give me a website that will show me approximate outdoor light dark cycles for outdoors, Midwest particularly. Also if your answer is farmer's almanac, apparently I am not smart enough to get to the section that shows the cycle all the way through the growing season.

Thanks in advance,

Regrets.

i actually just came across this today, idk how accurate it is but here ya go

http://aa.usno.navy.mil/data/docs/RS_OneDay.php