When do clocks go forward?

When the clocks go forward for Daylight Saving Time why does time not catch up with Spain who are one hour in front as the clocks there do not move?

• Answer:

  Why Time Does Not Catch Up With Spain Depending on where you live, observance of Daylight Savings Time is handled either on a local, state, or national basis. The EU does not follow American practice for DST so their time change occurs on a different date than ours. Every spring and fall there are a few weeks when one place has made the changeover but the other has not, so they're out of sync. Once both have made the changeover, time differences are back to "normal". Check out places like Arizona, where local citizens voted not to observe DST at all. Major parts of the state remain on standard time all year. However, some individual towns, U.S. parklands, and the autonomous Indian Nations do observe DST, so as you drive across the state you can end up resetting your watch every 50 or 100 miles!!!