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”
Assistant:
I understand all languages.
How many working days in year 2090?
Here is the detail of the calculation:
Because 2090 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 11 public holidays that do not fall during a weekend and we obtain 249 working days in 2090.
Here is the list of these 11 public holidays:
1. Seollal / Korean New Year Holiday : Monday, 30 January, 2090
2. Seollal / Korean New Year Holiday : Tuesday, 31 January, 2090
3. Independence Movement Day : Wednesday, 1 March, 2090
4. Children's Day : Friday, 5 May, 2090
5. Memorial Day : Tuesday, 6 June, 2090
6. Liberation Day : Tuesday, 15 August, 2090
7. Chuseok / Midautumn Festival : Thursday, 7 September, 2090
8. Chuseok / Midautumn Festival : Friday, 8 September, 2090
9. National Foundation Day : Tuesday, 3 October, 2090
10. Chuseok / Midautumn Festival : Monday, 9 October, 2090
11. Christmas Day : Monday, 25 December, 2090
And here are the 6 public holidays falling on a weekend:
1. New Year's Day : Sunday, 1 January, 2090
2. Seollal / Korean New Year Holiday : Sunday, 29 January, 2090
3. Buddha's Birthday : Sunday, 7 May, 2090
4. Chuseok / Midautumn Festival : Saturday, 9 September, 2090
5. Chuseok / Midautumn Festival : Saturday, 7 October, 2090
6. Chuseok / Midautumn Festival : Sunday, 8 October, 2090
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