Define a period

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How many working days in year 2004?

Here is the detail of the calculation:

Because 2004 is a leap year, it has 366 days.

Let's remove 53 saturdays and 52 sundays. It remains 261 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 254 working days in 2004.

Here is the list of these 7 public holidays:

1. פסח : Tuesday, 6 April, 2004
2. שביעי של פסח : Monday, 12 April, 2004
3. יום העצמאות : Tuesday, 27 April, 2004
4. שבועות : Wednesday, 26 May, 2004
5. ראש השנה : Thursday, 16 September, 2004
6. סוכות : Thursday, 30 September, 2004
7. שמחת תורה/שמיני עצרת : Thursday, 7 October, 2004

And here are the 2 public holidays falling on a weekend:

1. ראש השנה : Friday, 17 September, 2004
2. יום כיפור : Saturday, 25 September, 2004