I understand what you mean but do you have any idea of when that update including this will be released, cause it would be quite a waste to release it in february or something next year when the snow is starting to dissapear in most places. If it something I would love to have during my christmas flights its De-icing units 
We always said, there would be no chance it would be released before CYVR. This means early next year at best. Is not that you *have* to fly with the real date: that's the main advantage of using a simulator in the first place, you can set any time/day/weather condition you want.
Yes, you're uncompromisingly right, Umberto. But, what I suppose what Captain_Edward wanted to imply with his answer is, it may be more realistic to fly with, more or less, the real date, which means, if it's winter people are going to fly in winter season in simulations too. It's not just a cheap slogan ''As real as it gets'' that every add-on developer and distributor votes with, but it's actually true that most people want to have a simulator which is as real as possible and sometimes the surely want to have it more real than it can ever going to be.
However doesn't really matter, but the thing is; the first step into realism can only be done by oneself. Of course, simmers can say to this, there's a slightly difference between a realism simulator and having realistic simulator. The second one for me mainly speaks to the environment itself (textures, sceneries, airplanes etc.) and the first one is besides other huge factors, simply the date you're flying.
The long and the short of it, if people want to have it ''realistic'' with airplanes and stuff like that, for me, they should automatically fly with the real date. Only with this opinion, a simulator gets at least a bit real.