How to display the time it took to run a build in Jenkins?

Question

I\'m configuring a process of Android application build by using Jenkins pipeline.

At the beginning and the end of the build, a message is sent to a relevant Slack c

Answer 1

Above @Evan's answers works perfectly fine to me to find out/show the build time duration of the Jenkins job.

echo ${currentBuild.durationString.replace(' and counting', '')}