Yes pages do time out. This is done for security reasons. After you have been in a page for 25 minutes and not been active on the page you will receive a warning that the page is about to time out, however, you will be able to extend your time on the page. After the third warning on a page you will  have to move to another page.
If the page times out after the third warning will the information that I have entered be saved or will I have to start all over again?
Thank you. Will I be able to start a new session and complete the information if it has not been saved?
You will be able to start using the Retirement Estimator again. You will,  however, have to check if you are eligible to use the Retirement Estimator.
What are the requirement and how does the Retirement Estimator work?
You must remember that the Retirement Estimator cannot provide your actual benefit amount until you have applied for benefits. The amount may differ from the estimates provide as you earnings may increase or decrease in the future.
What is the time limit for staying on each page?
There are time limits but you will receive a warning after 25 minutes without doing anything and you will be given the option to extend your time on the page.
Who is eligible to  use the estimator?
You can use the estimator is you have enough Social Security credits at the time to quality for benefits.
Is it possible to estimate my retirement benefits with the estimator?