In most cases, a pension is paid for life. The purpose of a pension is to provide a regular income to an individual in retirement, and this income is typically paid for the rest of the individual's life.
When you reach retirement age and start receiving a pension, the payments will continue for as long as you live, unless the terms of the pension specify otherwise. In some cases, for example, if you have a defined benefit pension, your pension may also provide some survivor benefits to your spouse or other dependents after you pass away.
It's worth noting that the amount of pension income you receive may be adjusted over time to account for inflation or changes in the economy. This is designed to help ensure that the value of your pension income does not decrease over time and that you are able to maintain a reasonable standard of living in retirement.