Weekends you can switch
Saturday and Sunday are the default, not a law of the tool.
The default weekend is Saturday and Sunday (checked in the row of days). Uncheck Sunday and check Friday if you are testing a Friday–Saturday weekend. Both calendars in one comparison share that weekend setting. If the two countries truly differ, run the month twice and read the exclusion list, or add the extra closed Fridays as manual holidays on one side.
January 2026 starts on a Thursday. With a Saturday–Sunday weekend there are 22 weekdays. That count is the pool before holidays.
The year export uses the weekend boxes as they stand when you press the button. Change them before you download.