How and where can i renew my paaport and how long will it take

I just did this a few months ago. it was fairly easy, just call your local post office and ask when their passport hours are, and visit during those hours. bring your old passport and whatever other materials they need (birth certificate, drivers license, social security card) There will be a large fee (mine was around 150) and then shipping and processing usually takes 4 to 8 weeks(mine was 6)