Define a period

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How many working days in year 2005?

Here is the detail of the calculation:

Because 2005 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 3 public holidays that do not fall during a weekend and we obtain 257 working days in 2005.

Here is the list of these 3 public holidays:

1. Commemoration of Atatürk, Youth and Sports Day : Thursday, 19 May, 2005
2. Victory Day : Tuesday, 30 August, 2005
3. Republic Day Eve : Friday, 28 October, 2005

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

1. New Year's Day : Saturday, 1 January, 2005
2. National Sovereignty and Children's Day : Saturday, 23 April, 2005
3. Labour and Solidarity Day : Sunday, 1 May, 2005
4. Republic Day : Saturday, 29 October, 2005