Which two aspects of a promotion are determined by its time policy?

In the context of a promotion within Salesforce Industries CPQ, the time policy determines several temporal aspects of the promotion, specifically the duration and the end date. The duration defines how long the promotion will last from its start, while the end date specifies the exact calendar date when the promotion will conclude. These settings ensure that promotions are automatically managed according to the predefined temporal criteria, simplifying the administration of sales and marketing campaigns.