Not sure about RCD510, but on the RNS510 there is a setting in the setup menu to display the time.
As for MY10 v MY10.5, the MY10.5 have the new climate control with the set heater buttons in the middle of the temperature dials, the MY10 have the older 3 dial climate control, with scroll wheels for the seat heaters next to the digital temperature readouts.
Matthew
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