Define a period

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How many working days in year 2001?

Here is the detail of the calculation:

Because 2001 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 8 public holidays that do not fall during a weekend and we obtain 253 working days in 2001.

Here is the list of these 8 public holidays:

1. Pesach : Sunday, 8 April, 2001
2. Yom Ha-Atzmaut : Thursday, 26 April, 2001
3. Shavuot : Monday, 28 May, 2001
4. Rosh Hashanah : Tuesday, 18 September, 2001
5. Rosh Hashanah : Wednesday, 19 September, 2001
6. Yom Kippur : Thursday, 27 September, 2001
7. Sukkot : Tuesday, 2 October, 2001
8. Shemini Atzeret / Simchat Torah : Tuesday, 9 October, 2001

And here is the public holiday falling on a weekend:

1. Shvi'i shel Pesach : Saturday, 14 April, 2001