%% OH that 's what tended to caused that move Mr Wiesman ??LOL .Kids are important. I do more swing/position than day trading. Close price about 2:57-3:00 =all have voted by then,CST. Open price, not as valuable as close price , i record both+ 11:45 to noon = about lunch time is the mid point more or less.[Stocks/trends],
Al Brooks has a theory about max or min of the day happening during the first 18 5min bars with 90% probability. Never actually had the time to verify it though.
10 a.m. Eastern Time (Economic News) if the response to the news moves the market and 10:30 a.m. for more of the same for the echo or the reversal - day trading options on SPY is where I work. If you do not day trade, this answer may be useless to you. Enjoy!