Seems things can happen quickly here. All it takes is knowledgable guys and the proper equipment. I don’t think my builder had either. Although we are living here now.
I think it took about a month to dig the 23 holes to put the polls in. Maybe deeper though. We never saw a cement truck until the day we poured our driveway. By then the house was built, yard was fenced in and they had no place left to dump their sand, gravel and cement bags.
Our builder told us 5 months as well. Last month November it was one year