i forgot
where is the button to change it one hour?

Look at the top of the board and click where it says "my controls"

Look at the left hand of the screen and go down to where it says "options". Under that, you will find "board settings" and you click on that.

When you click that, you will see a drop down menu for time zones. Set it for Eastern time. Then you have to go to the bottom of that page and click on the update settings button.