There are different views in academic circle about how to ascertain the beginning for calculating the prescription period of Anspruch of unascertained deadline for performance.

诉讼当事人往往基于现实的需要而未约定债务的履行期限，目前，我国学术界对未定履行期的请求权的诉讼时效期间的起算意见未达成一致。

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In china, representation adopts ask-answer doctrine and both writing and oral forms are permitted. The deadline for performance of representation should be from the time when …

我国对告知义务的内容采用询问回答主义，采取口头或书面方式均可；

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Two teaching unions are joining forces to call for the government to extend the application deadline for performance-related pay.

BBC: Call for teachers' pay deadline delay