What best describes the length time someone his or her copyright?

The length of time someone holds a copyright typically lasts for the life of the author plus 70 years in many jurisdictions, such as the United States. For works created by corporations, the copyright lasts 95 years from publication or 120 years from creation, whichever is shorter. After these periods, the work enters the public domain. However, copyright laws can vary by country, so specific durations may differ.