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 2131?
Here is the detail of the calculation:
Because 2131 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 13 public holidays that do not fall during a weekend and we obtain 248 working days in 2131.
Here is the list of these 13 public holidays:
1. New Year's Day : Monday, 1 January, 2131
2. Coming of Age Day : Monday, 8 January, 2131
3. Foundation Day (observance) : Monday, 12 February, 2131
4. Emperor's Birthday : Friday, 23 February, 2131
5. Vernal Equinox Day : Tuesday, 20 March, 2131
6. Shōwa Day (observance) : Monday, 30 April, 2131
7. Constitution Memorial Day : Thursday, 3 May, 2131
8. Greenery Day : Friday, 4 May, 2131
9. Marine Day : Monday, 16 July, 2131
10. Respect-for-Aged Day : Monday, 17 September, 2131
11. Autumnal Equinox Day (observance) : Monday, 24 September, 2131
12. Health and Sports Day : Monday, 8 October, 2131
13. Labor Thanksgiving Day : Friday, 23 November, 2131
And here are the 6 public holidays falling on a weekend:
1. Foundation Day : Sunday, 11 February, 2131
2. Shōwa Day : Sunday, 29 April, 2131
3. Children's Day : Saturday, 5 May, 2131
4. Mountain Day : Saturday, 11 August, 2131
5. Autumnal Equinox Day : Sunday, 23 September, 2131
6. Culture Day : Saturday, 3 November, 2131
Save 
Delete 
Copy 
