# 国民健康保険法 / National Health Insurance Act — 第百十一条 (Article 111)

- Law: 国民健康保険法 (National Health Insurance Act), 昭和三十三年法律第百九十二号
- English title "National Health 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: 第百十一条 (Article 111)（期間の計算） — address `art-111`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/national-health-insurance-act/art-111
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/333AC0000000192/art-111
- 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.

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### 第百十一条（期間の計算） — (Calculation of a Term)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-111 · https://japanlaw.org/ja/national-health-insurance-act/art-111 · https://japanlaw.org/l/333AC0000000192/art-111</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（明治二十九年法律第八十九号）の期間に関する規定を準用する。
<sup>art-111/par-1 · https://japanlaw.org/ja/national-health-insurance-act/art-111/par-1 · https://japanlaw.org/l/333AC0000000192/art-111/par-1</sup>
The provisions of the Civil Code (Act No. 89 of 1896) concerning periods apply mutatis mutandis to the calculation of periods prescribed in this Act or orders based on this Act.
<sup>machine translation, not official</sup>

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 国民健康保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/333AC0000000192/20261001_507AC0000000087), retrieved 2026-10-17
- Japanese Law Translation Database System, Ministry of Justice (法務省) — National Health Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/2453/tb), retrieved 2026-10-17
- claude-sonnet-5-5 — Machine translation, batch national-health-insurance-act-20261017T183826-010, translated 2026-10-18
- This site's parser, version 209 — 国民健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-17