databutler.dev · /facts — every fact · Verified Facts protocol · /.well-known/facts.json · /changes
[{"date":"2027-01-01","name":"元日"},{"date":"2027-01-11","name":"成人の日"},{"date":"2027-02-11","name":"建国記念の日"},{"date":"2027-02-23","name":"天皇誕生日"},{"date":"2027-03-21","name":"春分の日"},{"date":"2027-03-22","name":"休日"},{"date":"2027-04-29","name":"昭和の日"},{"date":"2027-05-03","name":"憲法記念日"},{"date":"2027-05-04","name":"みどりの日"},{"date":"2027-05-05","name":"こどもの日"},{"date":"2027-07-19","name":"海の日"},{"date":"2027-08-11","name":"山の日"},{"date":"2027-09-20","name":"敬老の日"},{"date":"2027-09-23","name":"秋分の日"},{"date":"2027-10-11","name":"スポーツの日"},{"date":"2027-11-03","name":"文化の日"},{"date":"2027-11-23","name":"勤労感謝の日"}] list of { date, name }
2027, from 2027-01-01 · verified 2026-10-24 against the official source
2027/1/1,元日 … 2027/3/22,休日 … 2027/11/23,勤労感謝の日
jp/holidays/2027sha256:b3eb15aa943655a81ee525a06b22c5b54dee99afd9695125fcd6483ec4a67a52db-2026-10 — keyscurl -s https://databutler.dev/f/jp/holidays/2027?max_age=30d — schema; verify with npx verified-facts verify https://databutler.dev/f/jp/holidays/2027
{
"protocol": "verified-facts/0.3",
"key": "jp/holidays/2027",
"label": "Japanese national public holidays and substitute holidays, 2027 (17 days)",
"value": [
{
"date": "2027-01-01",
"name": "元日"
},
{
"date": "2027-01-11",
"name": "成人の日"
},
{
"date": "2027-02-11",
"name": "建国記念の日"
},
{
"date": "2027-02-23",
"name": "天皇誕生日"
},
{
"date": "2027-03-21",
"name": "春分の日"
},
{
"date": "2027-03-22",
"name": "休日"
},
{
"date": "2027-04-29",
"name": "昭和の日"
},
{
"date": "2027-05-03",
"name": "憲法記念日"
},
{
"date": "2027-05-04",
"name": "みどりの日"
},
{
"date": "2027-05-05",
"name": "こどもの日"
},
{
"date": "2027-07-19",
"name": "海の日"
},
{
"date": "2027-08-11",
"name": "山の日"
},
{
"date": "2027-09-20",
"name": "敬老の日"
},
{
"date": "2027-09-23",
"name": "秋分の日"
},
{
"date": "2027-10-11",
"name": "スポーツの日"
},
{
"date": "2027-11-03",
"name": "文化の日"
},
{
"date": "2027-11-23",
"name": "勤労感謝の日"
}
],
"unit": "list of { date, name }",
"period": "2027",
"effectiveFrom": "2027-01-01",
"effectiveTo": "2027-12-31",
"source": "https://www8.cao.go.jp/chosei/shukujitsu/syukujitsu.csv",
"quote": "2027/1/1,元日 … 2027/3/22,休日 … 2027/11/23,勤労感謝の日",
"verifiedDate": "2026-10-24",
"nextScheduledRefresh": "2026-11-28",
"changeCadence": "annual",
"nextExpectedChange": null,
"sourceCheckedAt": "2026-11-02",
"status": "fresh",
"ageDays": 13,
"maxAgeDays": null,
"scope": "令和9年 (2027): 16 national holidays plus one substitute 休日 (2027-03-22, because 春分の日 falls on a Sunday). 2028 dates are published by 内閣府 in February 2027. Names as published (Japanese).",
"hash": "sha256:b3eb15aa943655a81ee525a06b22c5b54dee99afd9695125fcd6483ec4a67a52",
"signature": {
"alg": "EdDSA",
"kid": "db-2026-10",
"jws": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRiLTIwMjYtMTAifQ..J_J8nWwbPr76WTolkNj23G5TI5F6-t89WXIE3iP9pI4Ob9igsQ5RwlrfwXoA2xJeh_4lpi3DYCxS3NH_3J0PCg",
"keys": "https://databutler.dev/.well-known/jwks.json"
},
"publisher": {
"name": "Data Butler",
"url": "https://databutler.dev/"
},
"cite": {
"url": "https://databutler.dev/facts/jp/holidays/2027",
"text": "databutler.dev, verified 2026-10-24 against https://www8.cao.go.jp/chosei/shukujitsu/syukujitsu.csv"
}
}