The Titanic took approximately 2 hours and 40 minutes to sink after striking the iceberg at 11:40 p.m. ship's time on April 14, 1912. It finally sank at around 2:20 a.m. on April 15, 1912
. The ship struck the iceberg and suffered damage to at least five watertight compartments. Although designed to stay afloat with up to four compartments flooded, the flooding spread beyond that, causing the bow to sink and the stern to rise vertically before the ship broke apart and sank
. Key moments near the end of the sinking include the ship breaking in two around 2:17 a.m., power failure, and the lights going out shortly before the final plunge into the ocean at 2:20 a.m.
. In summary, from collision to complete submersion, the Titanic's sinking lasted about two hours and forty minutes.
