I want to know the answer to the following question:
When did Japan surrender?
All the background I'm provided with is that "At noon on 15 August, after the American government's intentionally ambiguous reply, stating that the "authority" of the emperor "shall be subject to the Supreme Commander of the Allied Powers", the Emperor broadcast to the nation and to the world at large the rescript of surrender, ending the Second World War.". Is that enough to answer the question?
Answer: yes