This date is determined by the exchange on which the contract is traded.
When we talk about expiration time in the context of finance, we are referring to the specific date and time when derivatives contracts end. At this point, any obligations or rights associated with the contract will come due or expire. It is important to note that the exchange where the contract is traded is responsible for determining this date. So, as investors, it is crucial to pay attention to these expiration dates in order to make informed decisions.