OK - first, there is no "enter" key on these phones, but there are special keys called "soft key" - which are the buttons BELOW the display on the handsets. They are called soft keys because their functions CHANGE - depending on what is being programmed.
So I have attached the instructions for programming the date and time, as an image. You MAY have to click on the image NAME to see the instructions. Also note that the programming is done using the HANDSET - and not the main base unit.
I have also including a link to a video - showing how this is done on a similar system. Note that the handset is NOT an exact match, but the steps are the same.
Click Here --> https://www.youtube.com/watch?v=tXtgyKK-6BM
Please use these resources to try to program the time on your own system - using one of the handsets, and then let me know if that works for you.
Please let me know if you have any more questions.
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