Define a period

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How many working days in year 1996?

Here is the detail of the calculation:

Because 1996 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 5 public holidays that do not fall during a weekend and we obtain 257 working days in 1996.

Here is the list of these 5 public holidays:

1. Pesach : Thursday, 4 April, 1996
2. Shvi'i shel Pesach : Wednesday, 10 April, 1996
3. Yom Ha-Atzmaut : Wednesday, 24 April, 1996
4. Rosh Hashanah : Sunday, 15 September, 1996
5. Yom Kippur : Monday, 23 September, 1996

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

1. Shavuot : Friday, 24 May, 1996
2. Rosh Hashanah : Saturday, 14 September, 1996
3. Sukkot : Saturday, 28 September, 1996
4. Shemini Atzeret / Simchat Torah : Saturday, 5 October, 1996