Define a period

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How many working days in year 2003?

Here is the detail of the calculation:

Because 2003 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 6 public holidays that do not fall during a weekend and we obtain 255 working days in 2003.

Here is the list of these 6 public holidays:

1. Purim : Tuesday, 18 March, 2003
2. Pesach : Thursday, 17 April, 2003
3. Shvi'i shel Pesach : Wednesday, 23 April, 2003
4. Yom Ha-Atzmaut : Wednesday, 7 May, 2003
5. Rosh Hashanah : Sunday, 28 September, 2003
6. Yom Kippur : Monday, 6 October, 2003

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

1. Shavuot : Friday, 6 June, 2003
2. Rosh Hashanah : Saturday, 27 September, 2003
3. Sukkot : Saturday, 11 October, 2003
4. Shemini Atzeret / Simchat Torah : Saturday, 18 October, 2003