Final answer:
The time from the start to the end date of an insurance coverage is known as the policy term or policy period, and it is key in determining coverage duration and premium calculations.
Step-by-step explanation:
The period a policy is in force, from the beginning or effective date to the expiration date, is commonly referred to as the policy term or policy period. This is a fundamental concept in insurance and refers to the length of time a policy provides coverage to the insured. An understanding of the policy term is critical, as it dictates when the protections of the insurance contract are active, and it impacts the calculation of premiums.