"What's today, again?"

A/B Day helps you find out whether a given day (be it today or a time in the future or past) is an A or B day on the Baltimore County Public Schools schedule.

The schedule is updated yearly, but it will also update when school is closed due to heat or snow.

You can choose to receive notifications each morning informing you whether it is an A or B day, and these notifications will also include relevant information in the event of a delay or closing.