祭日
さいじつ
saijitsu
= national holiday; festival day; public holiday
Saijitsu (祭日) means a national holiday or festival day — a day marked on the Japanese calendar as an official public holiday. Japan has 16 national holidays each year, one of the most generous public holiday systems among developed nations, and saijitsu are woven into the rhythm of the working year.
Saijitsu (祭日) refers to official public holidays designated by Japan’s Kokumin no Shukujitsu ni Kansuru Houritsu (国民の祝日に関する法律, National Holiday Law). In precise usage, saijitsu (祭日) originally referred specifically to days tied to imperial court rituals and shrine festivals, while shukujitsu (祝日) is the broader modern legal term for public holidays. In everyday speech, the two words are used interchangeably. Japan’s 16 public holidays include Kenkoku Kinen no Hi (建国記念の日, National Foundation Day, Feb 11), Shunbun no Hi (春分の日, Vernal Equinox Day), Keiro no Hi (敬老の日, Respect for the Aged Day), and Bunka no Hi (文化の日, Culture Day, Nov 3). The Golden Week (ゴールデンウィーク) cluster in late April to early May groups four holidays within about ten days, becoming Japan’s busiest travel period.
The practical rule for Japanese workers: when a saijitsu falls on a Sunday, the following Monday becomes a substitute holiday (furikae kyuujitsu, 振替休日). When two public holidays surround a regular weekday, that weekday also becomes a holiday by rule — a provision called kokumin no kyuujitsu (国民の休日). These rules make the Japanese calendar quite complex for scheduling purposes. The Golden Week cluster (late April to early May) is the most significant: travel costs spike, hotels fill months in advance, and many businesses close entirely.
祭日 uses 祭 (sai — festival, ceremony, worship) and 日 (nichi/hi — day). Together: ‘festival day’ or ‘ceremony day’ — reflecting the original connection between public holidays and religious or imperial ritual observances. The character 祭 contains the meat radical 肉 above a hand shape above an altar radical — depicting the offering of meat in ritual ceremony.
Everyday use
明日は祭日なので、銀行は休みです。
Ashita wa saijitsu na no de, ginkou wa yasumi desu.
Tomorrow is a public holiday, so the bank will be closed.
Casual / Social Media
祭日なのに仕事があって悲しい。みんなはお出かけしてるのに…
Saijitsu na no ni shigoto ga atte kanashii. Minna wa odekake shiteru no ni…
I have to work even though it’s a holiday. Everyone else is out having fun…
Formal / Cultural context
日本には年間16日の国民の祝日があり、祭日と総称されることも多い。
Nihon ni wa nenkan 16 nichi no kokumin no shukujitsu ga ari, saijitsu to soushousareru koto mo ooi.
Japan has 16 national public holidays per year, collectively referred to as saijitsu.
Japan’s public holiday system reflects the country’s layered history of imperial observance, seasonal agricultural cycles, and post-war social values. Holidays like Shunbun no Hi (春分の日, Vernal Equinox) and Shuubun no Hi (秋分の日, Autumnal Equinox) connect to ancient East Asian astronomical traditions. Tennou Tanjoubbi (天皇誕生日, Emperor’s Birthday) is recalibrated with each new emperor — when Emperor Akihito abdicated in 2019 and Emperor Naruhito ascended, the holiday moved from December 23 to February 23. This living connection between the imperial calendar and public holidays is unlike most modern democracies.
The Golden Week (Gooruden Wiiku) cluster in late April and early May is a cultural phenomenon in itself. Showa Day (April 29), Constitution Day (May 3), Greenery Day (May 4), and Children’s Day (May 5) create a near-continuous holiday stretch that triggers the largest annual domestic travel movement in Japan. Highways clog, Shinkansen seats sell out months ahead, and resort towns see their peak annual visitors. For many Japanese workers, Golden Week is the only extended break of the spring — making it the de facto equivalent of a national vacation week, even though no single law mandates it as such.