I'm eager to see what's changed in the sound part, since that's something that wasn't teased for this update. I'm hoping for better diesel and suspension SFX.
UTC Universal Coordinated Time, usually releases at 20:00 or thereabouts can check time here, https://www.timeanddate.com/worldclock/timezone/utc
Greenwich Mean Time, coordinated world time, Zulu, whathaveyou. I remember it being mentioned multiple times is all.
Let's stop bickering about time zones, shouldn't we? It really doesn't follow any timezone in particular, it's impossible to determine which. But it usually updates at around 20:00 UTC, or 3:00 EST.
I don't see any necessary relation there... It's just an adapted model from the 36/38/42 inch off road tire that's available for the 8 lug wheels. There's no reason they can't officially resize the crawler tires to fit the HD wheels, it's not like a particular tire type is only good for a single rim on a single vehicle.