[rhaway84773]

Also there’s a massive continent called South America in the same time zone. Further, there’s also large swathes of Central America.

But this claim that time zone matters isn’t even true in the way the GP thinks. If time zone does indeed matter, it strengthens the case to move the entire team wholesale to cheaper locales than keep anyone hired in the US.

[borroka]

This is all very theoretical in nature. In fact, I don't know of any U.S.-based company who successfully outsourced their whole operations to South America, India, or, as the comment above the one I am responding to proposed, Canada.

Time zone is one reason. The other is about work culture, ways of culture, schools, the academic world, the media, the circle of friends that often overlaps with the circle of professional acquaintances, the expectations.

[RestlessMind]

A big chunk of our engineering and product headcount has moved to Canada. Looking at our engineering org, Canada has disproportionate number of employees compared to the US.