How to findout installation date of ESXi
To find the ESXi install date you should follow the below steps Find the System UUID by running one of the following commands: esxcfg-info | grep -i UUID You’ll get an output similar to: esxcfg-info | grep -i “\\-System UUID” You’ll get an output similar to: esxcli system uuid get Convert the first 8 hexadecimal characters to decimal format using calculator or e.g. this online converter. In my case the hexadecimal characters 54aedcc8 translates to decimal numbers 1420745928 Use e.g. this Epoch to convert the decimal numbers to a date. In my case the decimal numbers 1420745928 translates to Thu, 08 Jan 2015 19:38:48 GMT