Define a period

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How many working days in year 1997?

Here is the detail of the calculation:

Because 1997 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 1997.

Here is the list of these 6 public holidays:

1. New Year's Day : Wednesday, 1 January, 1997
2. National Sovereignty and Children's Day : Wednesday, 23 April, 1997
3. Labour and Solidarity Day : Thursday, 1 May, 1997
4. Commemoration of Atatürk, Youth and Sports Day : Monday, 19 May, 1997
5. Republic Day Eve : Tuesday, 28 October, 1997
6. Republic Day : Wednesday, 29 October, 1997

And here is the public holiday falling on a weekend:

1. Victory Day : Saturday, 30 August, 1997