How to set the clock on a timer/ programmable thermostat

This video explains how to set the time on you Smatrix Pulse Timer or Programmable Thermostat

[@Jo-annSamurai3069]

Hi I don’t know if you can help. Our thermostat is preset and it doesn’t go up to 10. So the hours and minutes screen doesn’t come up . Thus the thermostat turns on at the wrong time. When it’s afternoon in real time the clock says for example 04:30 meaning it thinks it’s 4:30 in the morning when in fact it could be 3pm it’s really messed up. I have called out underfloor heating “experts” who couldn’t work out how to change the clock. I did reach out to Uponor UK but it would cost extra because they are in another part of London. It’s obviously really cold now I just need the thermostats to work properly so we can be warm. It also takes more than 3 hours to heat up which isn’t great when it’s really cold outside. Once we kept it on for about 3 days eventually it went back to cutting out. And it would be cold again. I hope someone can give me some advice. Before I spend a small fortune trying to sort this out.