Date Certain

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Date Certain

The date on which a contract expires or by which it must be completed. For example, every option contract has a date on which or by which the option must be exercised if it is to be exercised at all. This is the date certain on an option contract. The date certain is considered legally binding. See also: Quadruple witching day.
References in periodicals archive ?
For example, TC Alaska will hold an open season and file for regulatory permits by dates certain.
Strong emphasis will be placed on implementation of those plans with dates certain.
They have dates certain, they have to report back, they have a specific charge.