I want to know the answer to the following question:
Along with the period 6:30 pm–9:30 pm, what opening hours were acceptable under the Defence of the Realm Act?
All the background I'm provided with is that "Opening for the full licensed hours was compulsory, and closing time was equally firmly enforced by the police; a landlord might lose his licence for infractions.". Is that enough to answer the question?
Answer: no