* School level: Elementary school teachers often start earlier than high school teachers.
* School schedule: Some schools have different start times for students and teachers.
* Specific job duties: Teachers often have responsibilities before and after the school day, such as lesson planning, grading, meetings, and extracurricular activities.
* Individual teacher's choices: Some teachers arrive early to prepare their classroom, while others might arrive closer to the start of the school day.
A teacher's workday could begin anywhere from very early in the morning (e.g., 6:00 AM) to a bit later (e.g., 7:30 AM or even 8:00 AM), and often extends well beyond the end of the school day.