I reply myself for completeness... On Mon, Aug 31, 2015 at 2:46 PM, [IDIS Technical Secretariat] Ricardo Rodríguez <ricardo.rodriguez(a)idisantiago.es> wrote: In the same XWiki page I can use Groovy to instantiate TimeZone and get a TimeZone object with the desired value... {{groovy}} xcontext.put("sTimezone", java.util.TimeZone.getTimeZone("GMT")) {{/groovy}} Also, complete the Velocity script to add a variable to store my locale... {{velocity}} #set($sLocale = $datetool.getLocale()) ... {{/velocity}} Then, I call it from Velocity... {{velocity}} ... #set($date = $datetool.format('d MMM yyyy hh:mm:ss z', $rcDoc.date, $sLocale, $xcontext.sTimezone)) ... {{/velocity}} I'll add this comments to the concerned Timeline Extension page in xwiki.org. Here there is an example running in our own server... http://portal.idisantiago.es/xwiki/bin/view/Home/Timeline Any comment will be extremely welcome! Thanks! Cheers, Ricardo -- Ricardo Rodríguez Research Management and Promotion Technician Technical Secretariat Health Research Institute of Santiago de Compostela (IDIS) http://www.idisantiago.es