Define a period

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How many working days in year 1984?

Here is the detail of the calculation:

Because 1984 is a leap year, it has 366 days.

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

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 254 working days in 1984.

Here is the list of these 8 public holidays:

1. Purim : Sunday, 18 March, 1984
2. Pesach : Tuesday, 17 April, 1984
3. Shvi'i shel Pesach : Monday, 23 April, 1984
4. Yom Ha-Atzmaut : Monday, 7 May, 1984
5. Shavuot : Wednesday, 6 June, 1984
6. Rosh Hashanah : Thursday, 27 September, 1984
7. Sukkot : Thursday, 11 October, 1984
8. Shemini Atzeret / Simchat Torah : Thursday, 18 October, 1984

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

1. Rosh Hashanah : Friday, 28 September, 1984
2. Yom Kippur : Saturday, 6 October, 1984