In the US the dates of DST were changed during the Bush administration as a cheap political gimmick to make it look like he was doing something about energy pri

In the US the dates of DST were changed during the Bush administration as a cheap political gimmick to make it look like he was doing something about energy prices. It didn't help much in that regard but caused plenty of chaos in the IT sector where a significant amount of systems were designed to adjust twice a year for DST but weren't designed for the date span of DST to change.