How Public Holidays Work in Japan

Japan recognises around 16 national holidays (kokumin no shukujitsu) set by the National Holiday Law, a comparatively generous total that reflects a deliberate effort to spread rest days across the calendar and reduce the intensity of the traditional work culture. The holidays mix civic milestones, such as Constitution Memorial Day and National Foundation Day, with seasonal and cultural observances like Greenery Day, Culture Day, and Children's Day, giving the year a distinctive rhythm of clustered breaks.

A defining feature is the Happy Monday System, introduced in stages from 2000, which permanently moves several holidays, including Coming of Age Day, Marine Day, Respect for the Aged Day, and Sports Day, to a Monday. The aim is to create reliable three-day weekends that encourage domestic travel and leisure. Because these dates shift each year, employers and payroll teams cannot assume a fixed calendar day and must confirm the exact Monday annually.

Two further rules can add extra days off. Under the substitute holiday rule (furikae kyūjitsu), when a national holiday falls on a Sunday, the following non-holiday weekday, usually Monday, becomes a compensatory day off. Separately, the citizens' holiday rule (kokumin no kyūjitsu) turns any single weekday sandwiched between two national holidays into a holiday itself, a mechanism that has historically extended Golden Week when the early-May holidays align favourably.

Crucially, there is no statutory requirement for private employers to grant paid time off on these national holidays. Whether a holiday is a paid non-working day depends entirely on each company's work rules (shūgyō kisoku) or collective agreement. Many firms do close, but others, particularly in retail, hospitality, and manufacturing, operate normally and treat the day as ordinary working time. For payroll and leave administration this means holiday treatment must be read from company policy rather than assumed from the national calendar, and any premium pay or substitute rest for holiday work has to be defined contractually.