Thanks.
Here are the steps in case someone else has the same question:

1 Press the MENU button until the start menu appears
2. Press the controller to open the i menu.
3. Turn the controller until ‘Display settings’ is selected and press the controller.
4. Move the controller once to the front to change to the first field.
5. Turn the controller until ‘Time’ is selected and press the controller.
6. Turn the controller until ‘Set time’ is selected and press the controller.
7. Turn the controller to set the hours and press the controller.
8. Turn the controller to set the minutes and press the controller