The use of increment time controls is becoming more common in the US. MCA uses increment time controls both in open and in scholastic tournaments. Below are a quick summary of how to set up common clocks and a link to the step-by-step process for these clocks.
For demonstration videos that illustrate how to operate common clocks (including setting increment time controls), click on Chess Links in the Main Menu sidebar on the left-hand side of MCA's home page. Then click on Clocks: How to Set Yours.