Time of the race

When I'm preparing for a race and I click on the weather button to get the forecast it shows both a forecast for day and another forecast for the night. How can I know if the races on my league are happening during the day or during the night?

check what the local time is at the track.

You mean on Google or something? Because in the game it only shows at my local time.

Ok, I'm still not getting this.

Yesterday we raced on Italy, which is GMT +1 (or +2 now with daylight saving time), and the league I'm in has its races at 21:30 GMT so it was definitely supposed to be a night race. Still, during the race the weather status was "Sunny".

Any help? 

I think "sunny" is used just to show that there are no clouds really. It has nothing to do with the time of day.

Felipe, when you click on practice where you set your setup and practice runs, you can see the live weather as it is, it can change quickly, but I always keep an eye on that and try to do runs as late as possible before it locks, time permitting.