I am always laughing when I see people wanting to control the temperature in a room. This must be something from a different country, or mind set.
In my mindset, I set the temperature for a room once, I might modify it empirical over time, but never ever do I change the temperature in a room daily or on a time schedule. Way more expensive to reheat a room, than to keep a room at a specific temperature. Maybe other countries/homes are different, but that is the scientific consensus in Germany.
the point may be, in the case of a central heatingsystem, you set the temperature for each room but there is no sensor which checks how warm it really is in each room (they often just have an outside sensor). now when you have big windows in a room and sun is shining the room would be warm enough without heating. when heating is on as well, it would get too warm...
my 2 cents