# 介護保険法 / Long-Term Care Insurance Act — 第二百一条 (Article 201)

- Law: 介護保険法 (Long-Term Care Insurance Act), 平成九年法律第百二十三号
- English title "Long-Term Care Insurance Act": Ministry of Justice translation
- Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say.
- Provision: 第二百一条 (Article 201)（期間の計算） — address `art-201`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/long-term-care-insurance-act/art-201
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/409AC0000000123/art-201
- Every provision below carries its address and both URLs on the line under it.
- Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below.

Only the Japanese as published by the government has legal effect; the text
below is a copy of it. Every English rendering below is a translation and
says which kind: the Ministry of Justice's translation, or this
site's machine translation, whose model and date the Sources list names.
They are never merged and never substituted for one another.

---

### 第二百一条（期間の計算） — (Calculation of Periods)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-201 · https://japanlaw.org/en/long-term-care-insurance-act/art-201 · https://japanlaw.org/l/409AC0000000123/art-201</sup>

**第一項**  この法律又はこの法律に基づく命令に規定する期間の計算については、民法の期間に関する規定を準用する。
<sup>art-201/par-1 · https://japanlaw.org/en/long-term-care-insurance-act/art-201/par-1 · https://japanlaw.org/l/409AC0000000123/art-201/par-1</sup>
With regard to the calculation of periods as prescribed by this Act or an Order based on this Act, the provisions concerning periods as set forth in the Civil Code apply mutatis mutandis.
<sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "With regard to the calculation of periods as prescribed by this Act or an Order based on this Act, said calculation applies mutatis mutandis to the provisions concerning said periods as set forth in Civil Code." — https://www.japaneselawtranslation.go.jp/en/laws/view/3807/tb</sup>

---

## Sources

- claude-opus-5-5 — Corrections to the Ministry of Justice's English of paragraphs, written 2026-10-19
- e-Gov 法令検索, Digital Agency (デジタル庁) — 介護保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/409AC0000000123/20261001_507AC0000000087), retrieved 2026-10-18
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Long-Term Care Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3807/tb), retrieved 2026-10-18
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Long-Term Care Insurance Act (介護保険法), Article 201, paragraph (1) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/3807/tb), retrieved 2026-10-18
- This site's parser, version 209 — 介護保険法 — structure, counts, cross-references and defined terms, computed 2026-10-18