Environment variables in Jenkins

Question

Where do the environment variables under Jenkins ( manage jenkins -> system information ) come from?

I checked /etc/init.d/tomcat5 , /usr/bin/dtomcat5, /usr/bin/tomc

Answer 1

What ultimately worked for me was the following steps:

1. Configure the Environment Injector Plugin: https://wiki.jenkins-ci.org/display/JENKINS/EnvInject+Plugin
2. Goto to the /job//configure screen
3. In Build Environment section check "Inject environment variables to the build process"
4. In "Properties Content" specified: TZ=America/New_York