5 Minute Chart of Dow 30
https://finviz.com/futures_charts.ashx?t=YM&p=m5
Every day between 2:00 AM, Eastern Standard Time, and 6:00 AM, there are unique Money Flow Patterns that repeat as the European Stock Markets open in the morning.
At 8:30 Eastern Standard Time and 10:00 AM, there are important data releases such as Inflation numbers or Non-Farm Payroll numbers that influence the PERCEPTIONS of traders.
Then at 9:30 AM, when North American Stock Markets open the ACTUAL Money Flow starts with changes in the values of stocks and the flow of money into bonds or other investment instruments such as Copper, Gold Oil, and many others.