java - How to log WebLogic startup time? -

when tomcat starts, last log line following:

info [main] org.apache.catalina.startup.catalina.start server startup in 20147 ms 

which feature log on purpose startup time in milliseconds, useful official stat.

when weblogic starts however, last log line is:

<weblogicserver> <cis1405986> <adminserver> <[standby] executethread: \ '10' queue: 'weblogic.kernel.default (self-tuning)'> <<wls kernel>> <> \  <5097d97d-cb6a-41aa-b418-717a3f768636-0000000d> <1479382972090> \ <[severity-value: 32] [rid: 0] [partition-id: 0] [partition-name: domain] > \ <bea-000365> <server state changed running.>  

acknowledging running status, not providing info concerning startup time.

question: there way make weblogic log startup time or find anywhere in console?

if fails, , independent of weblogic, can deploy war queries jvm uptime in init class , emits log, , nothing else. see https://stackoverflow.com/a/817835/1037626