1. Leap second to be introduced into UTC on June 30, 2015

Leap second to be introduced into UTC on June 30, 2015

News Date: 06/04/2015

Coordinated Universal Time (UTC) must be adjusted to maintain its correlation to mean solar time due to irregularities in the Earth's rotation. Therefore, a leap second will be introduced into UTC on June 30, 2015 at 23:59:59 UTC. More information about the leap second and preparing for it is available from the following websites:

Last Updated: Aug 23, 2017 at 12:44 PM EDT