Both holidays fall on different dates that are based on the Islamic lunar calendar. This year Ramadan celebration began on August 22, 2009 and will finish on or around September 20, 2009.
As the holiday began, the White House recorded a special holiday message for the Muslim world. In it President Obama offered a brief history of the celebration and compared its traditions within his own Christian faith. The President even assured Muslims that he was trying to get a handle on the H1N1 virus before the millions all gather in Mecca for the Hajj.
In the end, the President offers hands of friendship and extended wishes for a Happy Ramadan from not just him, but from all Americans.
Hit play on the attached video to see the entire White House holiday message for yourself.