Whatever I pass as "timeZone" results in following log entries (excerpt):
[10:28:58:939]|[09-30-2011]|[SYSOUT]|[INFO]|[46]|: java.lang.StringIndexOutOfBoundsException: String index out of range: -2|
[10:28:58:939]|[09-30-2011]|[SYSOUT]|[INFO]|[46]|: at java.lang.String.substring(Unknown Source)|
[10:28:58:939]|[09-30-2011]|[SYSOUT]|[INFO]|[46]|: at com.adventnet.servicedesk.servlet.site.SiteHandler.handleSiteOperation(SiteHandler.java:161)|
[10:28:58:939]|[09-30-2011]|[SYSOUT]|[INFO]|[46]|: at com.adventnet.servicedesk.servlet.site.SiteOperationServlet.doPost(SiteOperationServlet.java:54)|