Title: Hong Kong Stock Exchange
Content: A pre-opening auction session from 9:00 am to 9:30 am. The opening price of a security is reported shortly after 9:20 am. ; A morning continuous trading session from 09:30 am to 12:00 pm. ; An extended morning session from 12:00 noon to 1:00 pm, also referred to as the lunch break. Continuous trading proceeds in specifically designated securities (currently two ETFs, 4362 and 4363). Trading in other securities is not possible. However, previously placed orders in any securities can be cancelled from 1:00 pm onwards. ; An afternoon continuous trading session from 1:00 pm to 4:00 pm. The trading day consists of: The 
Title: Hong Kong Stock Exchange
Content:  line with China. Reactions from both brokers and the restaurant industry were mixed. On 7 March 2011, the exchange extended its hours in the first of two phases. The morning session now ran from 9:30 am to 12:00 noon, followed by a ninety-minute lunch break, and an afternoon session from 1:30 pm to 4:00 pm. Index futures and options now began trading at 9:15 am, thirty minutes earlier than before, and closed at the same time as before, 4:15 pm. On 5 March 2012, the lunch break was cut to sixty minutes, with the afternoon session running from 1:00 pm to 4:00 pm.
Title: Hong Kong Stock Exchange
Content:  The Hong Kong securities market can be traced back to 1866, but the stock market was formally set up in 1891, when the Association of Stockbrokers in Hong Kong was established. It was renamed as The Hong Kong Stock Exchange in 1914. By 1972, Hong Kong had four stock exchanges in operation. There were subsequent calls for the formation of a unified stock exchange. The Stock Exchange of Hong Kong Limited was incorporated in 1980 and trading on the exchange finally commenced on 2 April 1986. Since 1986, a number of major developments have taken place. The 1987 market crash 
Title: Hong Kong Exchanges and Clearing
Content:  HKEX's morning session runs from 09:00 am to 12:00 pm; the extended morning session is from 12:00 pm until 1:00 pm and the afternoon session is from 1:00 pm to 4:00 pm. HKEX implemented a Closing Auction Session (CAS) in two phases on 25 July 2016 and 24 July 2017. The securities eligible for the CAS include all constituents of the Hang Seng Composite LargeCap, MidCap and SmallCap indices, H shares which have corresponding A shares listed on a mainland exchange and all exchange traded funds. It also includes some regulated short-selling orders. A Volatility Control Mechanism (VCM), which functions similarly to circuit breakers on US exchanges, was implemented in two phases on 22 August 2016 and 16 January 2017.
Title: Hong Kong Stock Exchange
Content:  followed by continuous trading from 10:00 AM to 12:30 PM and 2:30 PM to 4:00 PM. The two-hour lunch break between the morning and afternoon sessions was the longest among the world's 20 major stock exchanges. A 2003 proposal to shorten the lunch break failed due to opposition from brokers. Another plan to shorten the lunch break to one hour was floated by the exchange in 2010; the morning session would then start earlier, run from 9:30 am to 12:00 pm, and the afternoon session from 1:00 pm to 4:00 pm, leaving the closing time the same as before. Justifications included bringing hours 
Title: Hong Kong Stock Exchange
Content: On 2 April 1986, a new trading hall opened. At that time, a total of 249 companies were listed on the Exchange, total market capitalisation was HK$245 billion. ; 6 October 1986: Stock Exchange grand opening. ; October 1987: The Stock Exchange is closed for four days in an attempt to stop losses during Black Monday global equities market crash ; May 1988: The Ian Hay Davison Report, commissioned to investigate practices on the exchange in the lead-up to its closure, is released, resulting in significant market reforms - although many took years to finally implement ; On 24 June 1992, the Central Clearing 
Title: Hong Kong Stock Exchange
Content:  price is reported as the median of five price snapshots taken from 3:59 to 4:00 pm every 15 seconds. In May 2008, the exchange also implemented a closing auction session to run from 4:00 pm to 4:10 pm, with a similar pricing mechanism as the opening auction; however, this resulted in significant fluctuations in the closing prices of stocks and suspicions of market manipulation. Initially, the exchange proposed limiting price fluctuations in the auction sessions to 2%; in the end, they removed the closing session entirely in March 2009. Up until 2011, trading hours comprised a pre-opening auction from 9:30 AM to 9:50 
Title: Chittagong Stock Exchange
Content:  Market opens at 10:30 am local time. Market closes at 02:30 pm local time.
Title: Shanghai-Hong Kong Stock Connect
Content:  Mutual market access was raised as early as January 2013 when Charles Li, the chief executive of HKEx, announced it as an objective in the bourse’s three-year strategic plan. It was finally formally announced by Chinese Premier Li Keqiang at the Boao Forum in the Chinese province of Hainan on April 10, 2014. Premier Li said the move aims to promote two-way opening-up and healthy development of the capital market on the mainland and Hong Kong. "We will carry out a new round of opening-up at a high level," Li said, adding that an important part of this endeavor is to further open up the service sector, including the capital market. Following the Premier’s announcement, the Securities and Futures Commission (SFC) in Hong Kong and the China Securities Regulatory Commission (CSRC) in Beijing made a Joint Announcement regarding the in-principle approval for the pilot programme. It said it should take approximately six months to launch.
Title: Ho Chi Minh City Stock Exchange
Content:  Matching trading session: Trading hours: 9:00 – 15:00; Break time 11:30 – 13:00 - 9:00 –  9:15: Opening, periodical matching. Types of orders: ATO, L.O. - 9:15 – 11:30, 13:00 – 14:30: Continuous matching. Type of order: L.O., MP. - 14:30 – 14:45: Closing, periodical matching. Types of orders: ATC, L.O. - 9:00 – 11:30,  13:00 – 15:00: Put through. (Stocks and bonds)

Question: when does the stock market open in hong kong?
Answer: 09:15.