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How many working days in year 1971?

Here is the detail of the calculation:

Because 1971 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 52 sundays. It remains 261 days.

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 252 working days in 1971.

Here is the list of these 9 public holidays:

1. New Year's Day : пятница, 1 январь, 1971
2. Family Day : понедельник, 15 февраль, 1971
3. Good Friday : пятница, 9 апрель, 1971
4. Victoria Day : понедельник, 24 май, 1971
5. Canada Day : четверг, 1 июль, 1971
6. British Columbia Day : понедельник, 2 август, 1971
7. Labour Day : понедельник, 6 сентябрь, 1971
8. Thanksgiving : понедельник, 11 октябрь, 1971
9. Remembrance Day : четверг, 11 ноябрь, 1971

And here is the public holiday falling on a weekend:

1. Christmas : суббота, 25 декабрь, 1971