I arrived in NZ to live on Oct 1, 2006. That happened to be the first Sunday in October, and according to the rules was the day that Daylight Time started in 2006. During 2007 there was rather intense lobbying to have the start date of Daylight Time be moved earlier so the extra daylight could be enjoyed sooner.
The change happened, and for 2007 the changeover date was set to be the last Sunday in September going forward. My what an outcry there was from many people protesting the awful disruption that change would cause them for days on end. Really, just bitter protests!
It turned out that the last Sunday of September in 2007 was September 30. So, compared to 2006, the change happened all of 1 day earlier. I really had to laugh at all the heat of the protests that had been put forward for really no reason. It was a hoot!