What is the fastest mens times for 400 meters?

As of October 2023, the fastest recorded time for the men's 400 meters is 43.03 seconds, set by Wayde van Niekerk of South Africa at the 2016 Rio Olympics. This remarkable performance broke the previous world record of 43.18 seconds, held by Michael Johnson since 1999. The 400 meters is a highly competitive event in Track and Field, showcasing both speed and endurance.