If day and night changes occurred based on what happens in the game, they would each happen in less than 2 realtime hours even in the most generous circumstances. If they occurred based on real life, which time zone would they use?

Also, it is not night for the entire world at the same time. The shading would have to look like this over an in-game day

And over an in-game year, the map itself would have to change

While I do think this is a great idea and would love to see the actual time and date in the game (perhaps starting the timer from the day the game was created given than the ai leaders are the same as the current real life leaders), I'm not sure if the devs will implement it because of the work required. Indeed, this would vastly improve the realism of the game and would be one of the first things a new player would notice. If one real life day corresponds to one ingame week (which is roughly true based on unit move speed), each day would pass in 51 minutes on a 4x game. On CoN's internal 120x server, each minute would pass in less than 2 minutes!

oh i like it, and would like it even more if terrain would change according to the climate, but i´m afraid this is some years ahead

This mean also days changed other map too?