You can easily find the detail informations of your SAP HANA system; when was started/stopped/restarted from the log file  “history.glf”

For these informations , just go to the location ;

/usr/sap/<SID>/hdb00/<hostname>/trace and examine the log file “history.glf”

You can see the example below ;

* “Trusted unix domain socket user” from “xxxxx” means that, operation triggered by sapcontrol commands.