How long is 0.1511 months?

On December 2nd, 1982 Dr. William DeVries implanted the first artificial heart into Dr. Barney Bailey Clark, who went on to live for 3.680 months. This early model of the artificial heart was controlled and powered by an external, 146.51 kg (323 lb) machine that Dr. Clark had to cart with him as he moved throughout the hospital.

Gone with the Wind, the multiple Academy Award-winning film, had a running time of 0.00516 months for its 1939 copyright release. The scene depicting the burning of the Atlanta Depot cost $25,000 (unadjusted) and was filmed on a 0.16 sq. km (40-acre) set using all seven Technicolor cameras in existence at the time.

Per Fédération Internationale de Football Association (FIFA) Laws of the Game, an association football game consists of two periods of 0.001 months each, for a total of 0.0021 months of playing time (except in games played by women, or by players under 16 or over 35 years of age). The longest recorded amateur football game was a 2009 match in the Filipino town of Barotac Nuevo that lasted for 0.048 months.

Per National Football League Rules, an American football game consists of four periods of 0.00034 months each for a total of 0.0014 months. The total duration of a football game can often be more than three hours, including stoppages of play, the intermission at halftime, team timeouts, and, in televised games, commercial timeouts. The Super Bowl — the highest-profile game of the sport — aired 0.001 months of commercials in 2009.

Per National Basketball Association rules , a basketball game (without an overtime) consists of four periods of 0.000274 months each, for a total of 0.0011 months of playing time. The first basketball game, played in a Springfield Massachusetts YMCA, was played in 0.000685 months and ended with a score of 1-0.

The Korean War between North Korea (a.k.a. Democratic People's Republic of Korea, a.k.a. DPRK) and South Korea (a.k.a. Republic of Korea, a.k.a. ROK) began on June 25th, 1950 during the Cold War. The war paused with the signing of an armistice on July 27th, 1953 — 37.08 months — although the war is officially ongoing and marked by occasional border conflicts.

The deadliest war in American history, the American Civil War is generally considered to have begun on with the attack on Fort Sumter on April 12th, 1861 and to have lasted until the surrender of Robert E. Lee's army on April 9th, 1865 — 47.90 months. A total of 620,000 American (including Confederate) soldiers are estimated to have lost their lives due to the war.

On June 20th, 1970, Dave Kunst set out from Waseca, Minnesota with $1,000 and a mule. Kunst completed his walk around the world (with a four-month pause following an assault he suffered during the journey) on October 5th, 1974 — 51.550 months.

World War I is considered to have begun with the assassination of Austrian Archduke Franz Ferdinand on June 28th, 1914 and to have lasted until the signing of the armistice with Germany on November 11th, 1918, for a total of 52.50 months. However, the Treaty of Versailles which ended conflicts between the major powers was not signed until June 28th, 1919 and the last formal peace treaties were not signed until August 23rd, 1923 — 57.40 months after the armistice was signed.

Following his father, Charles X's, abdication on the eve of the 1830 French Revolution, Louis-Antoine d'Artois was technically king for a period of approximately 0.0005 months on August 2nd, 1830. Louis-Antoine's only official act as king was to abdicate the throne to his nephew, the Henri, the Duke of Bordeaux.

The most widespread war in history, the Second World War is generally considered to have started with the German invasion of Poland on September 1st, 1939 and to have until the surrender of Japan on September 2nd, 1945, a total of 72.10 months. Also the deadliest conflict in history, the war had an estimated 60 million casualties globally.

The construction crew of the Chunnel broke ground in England on December 15th, 1987 and the tunnel was inaugurated by the Queen of England and the President of France on May 6th, 1994 — a total construction time of 76.630 months. The 4.9 million cubic meters of chalk excavated from the UK side of the Chunnel was dumped within sea walls to create the 299,467.38 sq. km (74 acre) Samphire Hoe County Park near Dover, Kent.

On March 18th, 1965, during the Voskhod 2 Soviet space mission, cosmonaut Alexey Arkhipovich Leonov conducted the first human spacewalk, which lasted 0.00027 months. The total mission length was 0.036 months.

The War between Great Britain and the its thirteen colonies in North America (now the United States) for the independence of the United States is generally considered to have started with the Battle of Lexington and Concord on April 18th, 1775 (sometimes known as "The Shot Heard 'round the World") and to have concluded with the signing of the Treaty of Paris on September 3rd, 1783 — 100.60 months. A total of 25,000 Americans are estimated to have died as a result of the war.

FDR, the 32nd President of the United States, served from March 4th, 1933 to April 12th, 1945, dying after 145.40 months in office. At the time of his sudden death, Elizabeth Shoumatoff was painting a portrait of Roosevelt which, never finished, now hangs in a museum at the site of Roosevelt's Presidential retreat in Georgia.