I'm using the Dashboard View plugin and using the "latest builds" view. The system that Jenkins runs on has its clock set to UTC, but I have the Jenkins timezone set to PST. On all the native Jenkins pages, such as job build history, I see timestamps in PST. In the "latest builds" view the times are all UTC.

I set the timezone for Jenkins by running it like this on the command line: java -Dorg.apache.commons.jelly.tags.fmt.timeZone=America/Los_Angeles -jar jenkins.war