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How many working days in year 1911?

Here is the detail of the calculation:

Because 1911 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 249 working days in 1911.

Here is the list of these 11 public holidays:

1. Seollal / Korean New Year Holiday : понедельник, 30 январь, 1911
2. Seollal / Korean New Year Holiday : вторник, 31 январь, 1911
3. Independence Movement Day : среда, 1 март, 1911
4. Children's Day : пятница, 5 май, 1911
5. Memorial Day : вторник, 6 июнь, 1911
6. Liberation Day : вторник, 15 август, 1911
7. National Foundation Day : вторник, 3 октябрь, 1911
8. Chuseok / Midautumn Festival : четверг, 5 октябрь, 1911
9. Chuseok / Midautumn Festival : пятница, 6 октябрь, 1911
10. Hangeul Day : понедельник, 9 октябрь, 1911
11. Christmas Day : понедельник, 25 декабрь, 1911

And here are the 4 public holidays falling on a weekend:

1. New Year's Day : воскресенье, 1 январь, 1911
2. Seollal / Korean New Year Holiday : воскресенье, 29 январь, 1911
3. Buddha's Birthday : суббота, 6 май, 1911
4. Chuseok / Midautumn Festival : суббота, 7 октябрь, 1911