LawBeat. The Supreme Court on Monday permitted the use of green firecrackers in Delhi-NCR on November 7 and 8, between 6 am and 7 am, and 8 pm and 10 pm.Get breaking news anytime, anywhere. The Supreme Court has permitted the use of green firecrackers in Delhi-NCR for Diwali on November 7 and 8, with specific time slots and a 300-metre exclusion zone around sensitive areas.