Day of the Dead is a nationwide school holiday in Mexico.
Mexico’s national basic-education calendar traditionally suspends classes on November 2 for Día de Muertos, making Mexico the country associated with the quiz’s nationwide school-holiday observance. The celebration itself is broader than a single day: November 1 commonly honors children and infants, while November 2 is associated especially with deceased adults.
The holiday blends Indigenous Mexican traditions with Catholic observances introduced during Spanish rule, particularly All Saints’ Day and All Souls’ Day. Families build ofrendas with photographs, candles, marigolds, favorite foods, and personal objects, while many visit cemeteries to clean and decorate graves. It is not simply Mexico’s version of Halloween: its central purpose is remembrance and welcoming the dead back into family life.
The exact school schedule can vary by education system, state, or school year, and some local authorities add extra closures. That scheduling detail does not change the canonical country answer: Mexico.