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How many working days in year 2018?
Here is the detail of the calculation:
Because 2018 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 2018.
 Here is the list of these 11 public holidays: 
 
 1. New Year's Day : понеділок, січень 1, 2018 
2. Martin Luther King Day : понеділок, січень 15, 2018 
3. Washington's Birthday : понеділок, лютий 19, 2018 
4. Memorial Day : понеділок, травень 28, 2018 
5. Juneteenth National Independence Day : вівторок, червень 19, 2018 
6. Independence Day : середа, липень 4, 2018 
7. Labor Day : понеділок, вересень 3, 2018 
8. Veterans Day (observance) : понеділок, листопад 12, 2018 
9. Thanksgiving : четвер, листопад 22, 2018 
10. Black Friday : п'ятниця, листопад 23, 2018 
11. Christmas : вівторок, грудень 25, 2018 
And here is the public holiday falling on a weekend:
1. Veterans Day : неділя, листопад 11, 2018