Define a period

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How many working days in year 2057?

Here is the detail of the calculation:

Because 2057 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 6 public holidays that do not fall during a weekend and we obtain 255 working days in 2057.

Here is the list of these 6 public holidays:

1. פורים : Tuesday, 20 March, 2057
2. פסח : Thursday, 19 April, 2057
3. שביעי של פסח : Wednesday, 25 April, 2057
4. יום העצמאות : Wednesday, 9 May, 2057
5. ראש השנה : Sunday, 30 September, 2057
6. יום כיפור : Monday, 8 October, 2057

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

1. שבועות : Friday, 8 June, 2057
2. ראש השנה : Saturday, 29 September, 2057
3. סוכות : Saturday, 13 October, 2057
4. שמחת תורה/שמיני עצרת : Saturday, 20 October, 2057