Assistant: Hello! I handle your requests in natural language, such as:
“Analyze the period from November 1, 2025, to April 25, 2028.”
or
“Add 100 business days to February 25, 2026.”
or
“Next Thursday at 2:12 PM + 124 working hours”
or
“I won't be working first week of next may (going to Greece)”
Assistant:
I understand all languages.
How many working days in year 1981?
Here is the detail of the calculation:
Because 1981 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 10 public holidays that do not fall during a weekend and we obtain 251 working days in 1981.
Here is the list of these 10 public holidays:
1. 신정 : Thursday, 1 January, 1981
2. Seollal / Korean New Year Holiday : Wednesday, 4 February, 1981
3. Seollal / Korean New Year Holiday : Thursday, 5 February, 1981
4. Seollal / Korean New Year Holiday : Friday, 6 February, 1981
5. 삼일절 : Monday, 2 March, 1981
6. 어린이날 : Tuesday, 5 May, 1981
7. 석가탄신일 : Monday, 11 May, 1981
8. 추석 : Friday, 11 September, 1981
9. 한글날 : Friday, 9 October, 1981
10. 성탄절 : Friday, 25 December, 1981
And here are the 6 public holidays falling on a weekend:
1. 삼일절 : Sunday, 1 March, 1981
2. 현충일 : Saturday, 6 June, 1981
3. 광복절 : Saturday, 15 August, 1981
4. 추석 : Saturday, 12 September, 1981
5. 추석 : Sunday, 13 September, 1981
6. 개천절 : Saturday, 3 October, 1981
Save 
Delete 
Copy 
