不变期间 meaning in English

peremptory period
tempus fatale
tempusfatale

Clause 8 the time period of " one year " set out in article 55 , and the time period of " five years " set out in article 75 and paragraph 2 of article 104 of the contract law are fixed , and are not subject to the rules governing the suspension , termination or extension of time limit for action
第八条合同法第五十五条规定的“一年” 、第七十五条和第一百零四条第二款规定的“五年”为不变期间，不适用诉讼时效中止、中断或者延长的规定。
Article 8 the time period of " one year " set out in article 55 , and the time period of " five years " set out in article 75 and paragraph 2 of article 104 of the contract law are fixed , and are not subject to the rules governing the suspension , termination or extension of time limit for action
第八条合同法第五十五条规定的“一年” 、第七十五条和第一百零四条第二款规定的“五年”为不变期间，不适用诉讼时效中止、中断或者延长的规定。