* Level of education: Primary school (primaria) days are generally shorter than secondary school (secundaria) days.
* School type: Private schools might have different schedules than public schools.
* Grade level: Even within the same school, the length of the day can vary slightly by grade.
* Regional variations: Schedules might differ slightly across provinces.
Generally, though, you can expect a school day to be anywhere from 5 to 8 hours, including breaks. It's more likely to be closer to the shorter end of that range for younger children and longer for older students.