Sources and method

How days are counted

Dates are calendar days, without hours, so time zones and clock changes never shift a count. Both the first and the last day are always counted.

Working days are Monday to Friday, minus national public holidays that fall on those days. Saturday and Sunday are the weekend in every supported country.

Public holidays

Holidays are computed from the rules set by law, for any year from 1900 to 2100: fixed dates, dates tied to Easter, or the nth weekday of a month. Japan's equinox days use the standard astronomical formula, and its substitute holidays follow the law.

Countries: United States (federal holidays, with observed days), France, Germany, Spain, Brazil and Japan. National holidays only: regional holidays, optional days and one-off holidays voted for a single year are not included.

Official sources

United States: U.S. Office of Personnel Management. France: Code du travail, article L3133-1. Germany: holidays common to all Länder. Spain: national holidays of the yearly BOE resolution. Brazil: Laws 662/1949, 6.802/1980 and 14.759/2023. Japan: Cabinet Office, national holidays.

Results are for information. For payroll or legal deadlines, check your employment contract, collective agreement or local authority.

Corrections

Found a mistake in a holiday or a count? Write to contact@niftyant.com.