Cost per time

Definition
Cost per time refers to a form of Internet advertising, where the buyer pays for an advertisement to be placed on a website for a set amount of time.

Overview
It differs from cost per impression, in which a buyer pays for the ad to be displayed a set number of times. Cost for time permits the ad to be displayed an unlimited number of times over the duration of the contract. The duration can be as little as a day or as long as a year.

Some contracts may allow for a guaranteed minimum number of impressions.