The US stock market opens at 9:30 a.m. EST. A list of stock exchange opening times is linked in the Related Links below.
http://www.answers.com/Q/What_time_us_stock_market_open
Stock Market Holiday Closures. The US stock exchange is open for trading from 9:30AM to 4PM EST Monday through Friday. All major US exchanges adhere to The New York Stock Exchange (NYSE) holiday closing schedules. The NYSE markets are closed and observe the following federal holidays in 2017. Stock markets are closed New Year's Day Jan 2.
https://www.isthemarketopen.com/
List of stock exchange opening times. The following is a list of opening and closing times for stock and futures exchanges worldwide. It includes a partial list of stock exchanges and the corresponding times the exchange opens and closes, along with the time zone within which the exchange is located.
https://en.wikipedia.org/wiki/List_of_stock_exchange_opening_times
Market Holidays 2016. The New York Stock Exchange (NYSE) together with the NASDAQ Stock Market are the two prominent U.S. stock exchanges that are widely considered to be the stock market.. Both stock exchanges observe the same holiday schedule, which appears below for the year 2016.
https://www.thestreet.com/stock-market-news/13407571/market-holidays-2016.html
Arizona does not have Daylight savings time so the stock market opens at different times different times of the year depending on whether or not it is daylight savings time fo…r Wallstreet. From March 13 (second Sunday in March) to November 6th, 2011 (First Sunday in November) the stock market is open from 7:30am till 2:00 pm.
http://www.answers.com/Q/What_time_us_stock_market_open
Narrative of 2016 Market Holidays: The U.S. stock and bond markets are closed on New Year's Day. The stock and bond markets are also closed on MLK day and Washington's birthday (also known as President's Day). The bond market closes early the day before Good Friday, but the stock market it open.
https://www.thestreet.com/stock-market-news/13407571/market-holidays-2016.html
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What time does the stock market open and close every day? The New York Stock Exchange is open Monday through Friday  9:30 a.m. to 4:00 p.m. ET     The NASDAQ Stock Market regular trading hours are from 9:30  a.m. to 4:00 …p.m.
http://www.answers.com/Q/What_time_us_stock_market_open
(January 2013) The following is a list of opening and closing times for stock and futures exchanges worldwide. It includes a partial list of stock exchanges and the corresponding times the exchange opens and closes, along with the time zone within which the exchange is located. Sorted by 1) UTC Open, 2) Time zone, and 3) market cap, starting with the first exchange to open Monday morning.
https://en.wikipedia.org/wiki/List_of_stock_exchange_opening_times
The bond market is open the day before the 4th of July, but the stock market closes early. The stock and bond markets are closed on July 4th and are closed on Labor Day. The stock market is open on Columbus Day but the bond market is closed. The stock market is open on Veteran's day but the bond market is closed.
https://www.thestreet.com/stock-market-news/13407571/market-holidays-2016.html
what time do the american stock markets open
The American stock markets open at 9:30 a.m. Eastern Standard Time. The American stock markets open on 9:30 ante meridian Eastern Time Zone.