Most of the time, the longer a person is willing to commit to leaving money in a certificate of deposit, the higher the interest rate they will receive.

Source: https://www.postandcourier.com/business/banks-cds-offer-hints-about-interest-rates-inflation-and-savings-strategies/article_823852ba-e504-11ed-be7a-fb5e42783131.html

One of the oldest banking products in the world, a certificate of deposit is a savings account that holds a fixed amount of money for a defined period of time, such as six months, one year, or five years.

Source: https://www.forbes.com/sites/bernadettejoy/2023/04/23/high-interest-rates-are-a-golden-opportunity-for-beginner-investors/