Mercury's location in your birth chart influences all of this! Mercury never travels more than 28 degrees from the Sun, so many people will have Mercury in the same zodiac sign as their Sun.
From Monday to Friday, the stock market remains open from 9:30 am to 4:00 pm, EST. PST time is 6:30 am to 1:00 pm.
While the majority of investors believe that the stock market opens at 9:30 AM and closes at 4:00 PM, there is also pre-market trading and post-market trading hours. The pre-Market hours for stock trading are from 8:00 AM until 9:30 AM Eastern Time, and the After-Market hours are from 4:00 PM until 6:30 PM Eastern Time. The stock market open and close Monday through Friday except on special holidays and may close early for special occasions.