I don't think your code
void LCDpaddedPrint
has the slightest thing to do with the RinkyDink LCD library. The great thing about the Henning Karlsen libraries is their comprehensive manuals, which you seem to have ignored, and their easily understood examples, likewise. I don't know anything about the DCF77 but you evidently have that under control using the monitor, and it is really just a matter of sending the same values to LCD in the kosher manner.