Hi Richard, I haven't had my Sharp EL640 for several years, but as I
remember, there is a switch on the right side that you slide twoard you
to put it in the set mode. If I remembver, it speaks everything so you
should have no problems after you get it in that mode. You need to enter
the time from the keypad and I think press the time button which I think
was the top left. You can also enter the date and it will know the day.
Kind of fun to play with that feature to see what day a certain date fell
or will fall on! GRIN! HTH!
73:
John