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Business days in Japan

How many working days each month has in Japan, with weekends and national public holidays removed. Every month page lists the individual business days and the holiday dates that were deducted, so the total can be checked by hand.

Month-by-month counts

MonthCalendar daysBusiness daysHolidays deducted
January 202631202detail
February 202628182detail
March 202631211detail
April 202630211detail
May 202631183detail
June 202630220detail
July 202631221detail
August 202631201detail
September 202630202detail
October 202631211detail
November 202630192detail
December 202631230detail
January 202731192detail
February 202728182detail
March 202731231detail
April 202730211detail
May 202731183detail
June 202730220detail
July 202731211detail
August 202731211detail
September 202730202detail
October 202731201detail
November 202730202detail
December 202731230detail

How these numbers are produced

A business day is a Monday to Friday that is not a national public holiday. National public holidays (the days the dataset records as applying to the whole country) are deducted; holidays that apply only in part of Japan, or only to certain employers or sectors, are listed on the holiday pages but not subtracted. The holiday list marks each date as deducted or not, so the two pages always agree.