Guy Boisvert wrote: > Hi! > > It appears that there have been some changes to tzdata recently. We > run an application that needs the server to stay at GMT. Previously, we > used the Casablanca timezone but now there seems to be a 1 hour > difference to GMT. I checked the London zone and they seem to change > time too. Looks like you were never on GMT / UTC - but on British Time, Which in the summer is one hour off GMT