[Closed] Digital Danfoss thermostat clock timewarp...

we have two Danfoss TP5000 programming/thermostat controls in our house, a new build that we've been in for just over 12 months. No issues with function but both units apparently have taken to speeding up time.. I've re programmed the timer to GMT twice but the clocks on both are 10/15 minutes ahead after only a few weeks- and seemingly increasing. Naturally this is throwing out the times the heating comes on and off. What gives?

Is my house about to vanish into a black hole? Is it Trump? Hurricane Ophelia?