Constitutional Reform Decree On The Reduction Of The Workweek.

On March 3, 2026, the Official Gazette of the Federation published the "Decree amending Sections IV and XI of Section A of Article 123 of the Political Constitution of the United Mexican States, regarding the reduction of the workweek," enacted by President Claudia Sheinbaum Pardo.

The reform establishes that the maximum workweek will be forty hours, modifying Mexico's constitutional labor framework. It also updates the provisions relating to overtime pay, establishing that overtime must be paid with a 100% surcharge over the ordinary wage, without exceeding twelve overtime hours per week. These hours may be distributed as up to four hours per day during a maximum of four days within that period.