You are not alone ;-) Basically daylight saving information can be different between browsers and different between browsers and JVM (like in DevMode). These differences exist because they probably all use different timezone databases (or the same database but in different versions of it).
What you can do is: 1.) Try to use DateTimeFormat.format(pattern, timezone). To change it for the DateBox use the three arg constructor of DateBox. This fixes quite some dates but probably not all. 2.) Only use UTC dates Additional read: https://groups.google.com/d/msg/google-web-toolkit/e7IqbcJIzTY/q04nxG_F8BkJ -- J. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.