Group 1 - The core viewpoint of the article is that the current trading hours of the A-share market do not meet the diverse trading needs of market participants and require optimization to align with the comprehensive reform and high-level opening of the capital market [1] Group 2 - The first phase of the proposed adjustment suggests extending the A-share afternoon trading closing time to 16:00, synchronizing with Hong Kong stock trading and overlapping with European stock exchanges [1] - The second phase involves extending the morning trading closing time to 12:00, achieving synchronization with Hong Kong and increasing daily trading hours to 5.5 hours, aligning with major exchanges in the Asia-Pacific region [1] - Additionally, the morning opening time is proposed to be moved forward to 9:00, allowing for a 6-hour trading duration, which is closer to the New York Stock Exchange level and enhances connectivity with international markets [1] Group 3 - The article emphasizes the importance of digitalization in supporting these changes, suggesting that regulatory bodies should advance the construction of a regulatory big data platform and utilize intelligent risk analysis tools to enhance risk monitoring [1] - It also recommends that brokerage firms upgrade their digital trading service platforms to provide precise and convenient trading services for investors by analyzing user trading data [1]