To set the Date and Time on a NODE Controller, push the back button until the clock icon is displayed. All four digits will be displayed representing the year. Use the + or - buttons to change the year. Press the right arrow when you are done. The two digits on the left represent the month. You can change this with the + or - for the month. Next is the day, and you can set it the same way. The AM/PM/24 hour is next, followed by hours, then minutes. When you're done you can press the back arrow to return to idle. More programming options are available on pages 7 through 11 of the owner's manual.