I have the "electronic" radio, there is a recessed button just above the clock face. Press button with a ball point pen, I use a jewlers phillips screw driver, till screen goes blank, using station preset buttons enter time, military time 3:18pm would be 15:18, there needs to be a display, turn key to any position. FYI, there are five pages of instructions on the radio in the owners manual. Hope this helps.

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83 SD

84 CD