Hacker News Reader

In Hebrew Sunday doesn't have a name, it's simply called "Day one", this is also true in Portuguese, Arabic, Greek, Chinese, Vietnamese, and others.

So no, the week does not start on Monday, it starts on Sunday.

The name "Weekend" came long long long after Sunday was considered the first day of the week.

View on HN

https://en.wikipedia.org/wiki/ISO_week_date

ISO says Monday

That’s a late 20th century invention, and not universally followed. Consider Unix time functions, which predate the ISO standard and follow what’s common practice in America even today, that Sunday is the first day of the week. Of course, Sunday was the first day of the week in Europe for over a thousand years and that practice has not fully been extinguished.

Reply on news.ycombinator.com