3–4 months with intensive daily study (8–10 hours daily).
Listening comprehension is 50% of the B2 exam. A silent PDF is useless. Ensure you have the (often available via the publisher’s media library if you have a license). pluspunkt deutsch b2 pdf
Die Bedeutung von Sprachzertifikaten für die Karriere 3–4 months with intensive daily study (8–10 hours daily)
Reaching B2 from A1/A2 generally requires 500–600 hours of study. pluspunkt deutsch b2 pdf