Does UPS deliver on saturdays?

I ordered a replacement phone from Tmobile on either monday or tuesday, they gave me a tracking number and the number says that this morning at 1AM (saturday) the package departed from Wyoming, Michigan (in SW MI) and I live in SE MI. It's now 6 obviously and the package still hasn't arrived, nor has the tracking information been updated since it left at 1am this morning. Do you think I can still get the package today, as I don't want to wait til Monday? Thank you for your help