There’s no one standard way to see when you installed your Linux system. What you want to do is find a file that hasn’t been modified since you installed Linux and see when it was created. The time and date the folder was created is when you installed your Linux system.

How do you find out when Linux was installed?

log you can find the date. Just execute ls -l /root/install. log and see date of file.

How do I find the date my operating system was installed?

Open command prompt, type “systeminfo” and press enter. Your system may take few mins to get the information. In the result page you will find an entry as “System Installation Date”. That is the date of windows installation.