>>153962OP, i think you got this entirely backwards.
You're looking at 04:00 UTC, but in china, indonesia, and india, this would be around 09:30 - 12:00 local time, a time when most of these would be at work or on other day activities.
A more correct time to look at would be when these groups are actually free and at home, I.E. in the afternoon/evening in their own timezone. And 13:00 UTC would be around 18:30 - 21:00 in their local time, a time when most of these groups have probably gotten home and able to play games.
13:00 UTC is also about 08:00 in CST, a time when most americans have just woken up for work, and 14:00 in CET, and time when europeans are still at work. Few of which that are probably playing games on steam.
Yet, guess when peak steam player count happens (in UTC)?