定义一个时期

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How many working days in year 2020?

Here is the detail of the calculation:

Because 2020 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 253 working days in 2020.

Here is the list of these 9 public holidays:

1. New Year's Day : 星期三, 2020, 01, 1
2. Louis Riel Day : 星期一, 2020, 02, 17
3. Good Friday : 星期五, 2020, 04, 10
4. Victoria Day : 星期一, 2020, 05, 18
5. Canada Day : 星期三, 2020, 07, 1
6. Terry Fox Day : 星期一, 2020, 08, 3
7. Labour Day : 星期一, 2020, 09, 7
8. Thanksgiving Day : 星期一, 2020, 10, 12
9. Christmas : 星期五, 2020, 12, 25