定义一个时期

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How many working days in year 2023?

Here is the detail of the calculation:

Because 2023 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 251 working days in 2023.

Here is the list of these 9 public holidays:

1. New Year's Day (observance) : 星期一, 2023, 01, 2
2. Good Friday : 星期五, 2023, 04, 7
3. Easter Monday : 星期一, 2023, 04, 10
4. Journée nationale des patriotes : 星期一, 2023, 05, 22
5. Canada Day (observance) : 星期一, 2023, 07, 3
6. Labour Day : 星期一, 2023, 09, 4
7. National Day for Truth and Reconciliation (observance) : 星期一, 2023, 10, 2
8. Thanksgiving Day : 星期一, 2023, 10, 9
9. Christmas : 星期一, 2023, 12, 25

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

1. New Year's Day : 星期日, 2023, 01, 1
2. National Holiday of Quebec (Fête nationale du Quebec) : 星期六, 2023, 06, 24
3. Canada Day : 星期六, 2023, 07, 1
4. National Day for Truth and Reconciliation : 星期六, 2023, 09, 30