Overview

• Classes in basic education begin Monday, Sept. 1, 2025 and end July 15, 2026 under the national calendar published in the Diario Oficial de la Federación.
• The calendar sets 185 effective days for preescolar, primaria and secundaria, and 190 for normales and teacher‑training centers.
• The first Consejo Técnico Escolar suspension that creates a long weekend is Friday, Sept. 26; further CTE sessions are slated for the last Fridays listed through June 2026.
• SEP reiterated no nationwide delay has been authorized, noting only extraordinary local emergencies could trigger adjustments by state authorities.
• Autonomous institutions follow their own timetables, with UNAM and IPN starting in August, while the SEP calendar also includes winter and Semana Santa breaks.