All players receive the daily reward from Fight Pit and Coliseum at the same time.
DragonSoul is a global game, we dont have separate servers by country, so this is totally unfair, in particolar for European players, who have reward time at 3.00 - 5.00 AM.
The best way to address this issue is to have more than just 1 reward time, for exemple rewards every 8h.
This will allow everyone all over the world to be online at least 2 out 3 times before reward time.
Obviously the more rewards time you use, the best balanced situation it wil be.
Note that the amount of rewards each time obviously need to be reduced. At the moment top1 spot in challenger gives 500 diamonds; if we use rewards every 8h the top spot might provide 200 diamonds instead. And so on.