This script replaces all relative time with local time by parsing the Zulu time from the title element of the span elements.
The replacement happens only after hovering over the date.
To view the source of the script: https://gist.github.com/dannyhajj/8057530
To install the script click here.
This script was inspired by this question http://meta.askubuntu.com/questions/7869/is-there-a-way-to-disable-relative-dates-and-times-on-posts-and-comments