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.
What time does the stock market close on 12-30-11? The Stock Market closes at 4PM EST on 30 December, 2011 and will be open for a full day on 3 January 2012. Edit