The Goethe Institut and the Common European Framework of Reference for Languages (CEFR) state: To reach A1 level, candidates need to have completed between 80 and 200 45-minute units of teaching, depending on their previous knowledge, and learning requirements.

In my class we have 80 units of teaching, which is the minimum.

Remember, this is not a 30-day challenge, neither a pre-recorded course.
This is a comprehensive German course with listening, reading, writing and lots of speaking exercises after which you can pass the A1 exam.