to find out how long your workstation is rolling. you can use this command:

stat -c %w /

2023-02-11 15:40:02.860056517 +0100

from the manual:

NAME
       stat - display file or file system status

DESCRIPTION
       Display file or file system status.

       Mandatory arguments to long options are mandatory for short options too.

       -c  --format=FORMAT
              use the specified FORMAT instead of the default; output a newline after each use of FORMAT

       The valid format sequences for files (without --file-system):

       %w     time of file birth, human-readable; - if unknown

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