Define a period

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How many working days in year 1993?

Here is the detail of the calculation:

Because 1993 is not a leap year, it has 365 days.

Let's remove 53 saturdays and 52 sundays. It remains 260 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 253 working days in 1993.

Here is the list of these 7 public holidays:

1. Pesach : Tuesday, 6 April, 1993
2. Shvi'i shel Pesach : Monday, 12 April, 1993
3. Yom Ha-Atzmaut : Monday, 26 April, 1993
4. Shavuot : Wednesday, 26 May, 1993
5. Rosh Hashanah : Thursday, 16 September, 1993
6. Sukkot : Thursday, 30 September, 1993
7. Shemini Atzeret / Simchat Torah : Thursday, 7 October, 1993

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

1. Rosh Hashanah : Friday, 17 September, 1993
2. Yom Kippur : Saturday, 25 September, 1993