An employer must not, in cases where the employer may extend a worker's working hours as prescribed in paragraph (1) of Article 36 of the Labour Standards Act pursuant to the provisions of that paragraph (referred to as "working hours" hereinafter in this Article), extend working hours beyond the limit on overtime (24 hours per month and 150 hours per year, the same applies in the following paragraph and Article 18-2) when a worker who is taking care of a child prior to starting elementary school and who does not fall under any of the following items makes a request in order to take care of the child; provided, however, that this does not apply to cases where the request would impede normal business operations:
事業主は、労働基準法第三十六条第一項の規定により同項に規定する労働時間（以下この条において単に「労働時間」という。）を延長することができる場合において、小学校就学の始期に達するまでの子を養育する労働者であって次の各号のいずれにも該当しないものが当該子を養育するために請求したときは、制限時間（一月について二十四時間、一年について百五十時間をいう。次項及び第十八条の二において同じ。）を超えて労働時間を延長してはならない。ただし、事業の正常な運営を妨げる場合は、この限りでない。
a worker employed by the employer for a continued period of less than one year; or
当該事業主に引き続き雇用された期間が一年に満たない労働者
beyond what is set forth in the preceding item, a person specified by Order of the Ministry of Health, Labour and Welfare as a worker for whom there are reasonable grounds for the request not being granted.
前号に掲げるもののほか、当該請求をできないこととすることについて合理的な理由があると認められる労働者として厚生労働省令で定めるもの
A request pursuant to the provisions of the preceding paragraph must be made, as prescribed by Order of the Ministry of Health, Labour and Welfare, with regard to a continued period where an employer must not extend working hours beyond the limit on overtime (limited to a period from one month to one year; referred to in paragraph (4) as "limited period"), by making clear the first day thereof (referred to as "scheduled start date of the limited period" hereinafter in this Article) and last day thereof (referred to in paragraph (4) as "scheduled end date of the limited period") on or before the day one month prior to the scheduled start date of the limited period. In this case, the limited period prescribed in the first sentence of this paragraph must not overlap with the limited period prescribed in the first sentence of Article 16-8, paragraph (2) (including as applied mutatis mutandis pursuant to the provisions of Article 16-9, paragraph (1)).
In the event that there are reasons specified by Order of the Ministry of Health, Labour and Welfare as to why the worker comes to cease childcare subject to the request, such as the death of the child, on or before the day preceding the scheduled start date of the limited period after the request was made pursuant to the provisions of paragraph (1), the request is deemed to have not been made. In this case, the worker must notify the employer without delay to the effect that those reasons have occurred.
第一項の規定による請求がされた後制限開始予定日とされた日の前日までに、子の死亡その他の労働者が当該請求に係る子の養育をしないこととなった事由として厚生労働省令で定める事由が生じたときは、当該請求は、されなかったものとみなす。この場合において、労働者は、その事業主に対して、当該事由が生じた旨を遅滞なく通知しなければならない。
In cases where any of the circumstances listed in the following items occurs, the limited period ends on the day on which the relevant circumstance occurs (or, in cases where the circumstance set forth in item (iii) occurs, the preceding day):
on or before the day preceding the scheduled end date of the limited period, there are reasons specified by Order of the Ministry of Health, Labour and Welfare as to why the worker comes to cease childcare subject to the request pursuant to the provisions of paragraph (1), such as the death of the child;
on or before the day preceding the scheduled end date of the limited period, the child subject to the request, which has been made pursuant to the provisions of paragraph (1), reaches the stage of starting elementary school; or
on or before the scheduled end date of the limited period, a period of leave pursuant to the provisions of Article 65, paragraph (1) or (2) of the Labor Standards Act, a period of childcare leave, a period of parental leave, or a period of caregiver leave has begun with regard to a worker who has made a request pursuant to the provisions of paragraph (1).
The provisions of the second sentence of paragraph (3) apply mutatis mutandis to cases where there are reasons specified by Order of the Ministry of Health, Labour and Welfare provided for in item (i) of the preceding paragraph.