The New Deal began officially on March 4th, 1933 when Franklin D. Roosevelt was inaugurated. The first action of the New Deal was to give the banks of the United States a four day vacation. This allowed the struggling banks to attempt to recover.
On December 7th, 1941 the New Deal ended. This day was significant because Pearl Harbor was bombed which led the United States into World War 2. The economy no longer needed the New Deal as a result. Overall, the New Deal was approximately eight years long.
The second New Deal was just a more aggressive extension of the original New Deal. Starting in 1935, this portion of Roosevelt's plan attempted to give more aide to the unemployed and elderly and attempted to give more rights to workers. For example, the Social Security Act was passed to support the elderly and ultimately avoid another Depression. The WPA (Works Progress Administration) was created to make public works jobs (9 million jobs were created by this agency). Lastly, the National Labor Relations Act gave credibility to Unions by better organizing them. This was critical to the development of worker's rights in our country going forward.