how long did abraham lincoln serve
How long was Abraham Lincoln the President of the United States? Abraham Lincoln served as president from March 4, 1861 until April 15, 1865, which would be four years, one month, and about 12 days. He was killed early in his second term. Abraham Lincoln became President of the United States on March 4, 1861, and was assassinated on April 15, 1865, having been President for 1503 days. Abraham Lincoln was President of the US for slightly over 4 years. He was elected twice, as President, and was assassinated about 6 weeks into his second term, as President .