December 1 every six years.
Transmisión del Poder Ejecutivo Federal – Change of Federal Government in México.
A new Mexican president is sworn in every six years on December 1.
Next observance: December 1, 2018.
Enrique Peña Nieto – 2013-2018
The Presidency of the Republic of México.
Official photograph of the President of México, Mr Enrique Peña Nieto. 2013-2018 The Presidency of the Republic. Español: Fotografía oficial del señor Presidente de México Enrique Peña Nieto. Presidencia de la República 2013-2018. Date 21 May 2013, 19:21:39 / Source Own work | Author PresidenciaMX 2012-2018 / https://en.wikipedia.org/