Define a period

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How many working days in year 2021?

Here is the detail of the calculation:

Because 2021 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 8 public holidays that do not fall during a weekend and we obtain 252 working days in 2021.

Here is the list of these 8 public holidays:

1. Pesach : Sunday, 28 March, 2021
2. Yom Ha-Atzmaut : Thursday, 15 April, 2021
3. Shavuot : Monday, 17 May, 2021
4. Rosh Hashanah : Tuesday, 7 September, 2021
5. Rosh Hashanah : Wednesday, 8 September, 2021
6. Yom Kippur : Thursday, 16 September, 2021
7. Sukkot : Tuesday, 21 September, 2021
8. Shemini Atzeret / Simchat Torah : Tuesday, 28 September, 2021

And here is the public holiday falling on a weekend:

1. Shvi'i shel Pesach : Saturday, 3 April, 2021