Casio G'zOne Rock - Manual (Page 160)

159
SETTINGS & TOOLS
press the Center Select Key [SET] to save the setting or press the
Right Soft Key [Skip] to go to the next setting.
FRONT CLOCK FORMAT: Select Digital, Analog or Off, then
press the Center Select Key [SET] to save the setting or press the
Right Soft Key [Skip] to complete set-up.