Daylight Saving Time for 2011 To End Sunday in U.S.

By Jonathan Spira on 30 October 2011
  • Share

Set Clocks, Reset Your iPhone Alarm, and Double Check Your Appointments

For information about Daylight Saving Time for 2012, click here.

This coming Sunday morning, while most people are asleep, the United States and parts of Canada will switch from Daylight Saving Time to Standard Time at 2 a.m. local time.

Europe set its clocks back one hour to Winter Time this past Sunday at 1 a.m. GMT, which means that the United States will be out of sync with dozens of countries this week.

The time change should go smoothly unless you happen to own an iPhone. Two years ago, a glitch in the iPhone’s operating system caused recurring weekday alarms not to ring on time on the Monday morning after the time change.

Although Apple had claimed the problem had been fixed, a similar issue occurred on January 1, 2011, when reoccurring alarms didn’t function until January 3.  It is possible that, come Monday morning, the alarm app won’t recognize the time change and will ring an hour late unless you manually reset the alarm. It is also possible that some other bug will rear its ugly head somewhere, regardless of operating system.

Last fall, Apple did announce plans for an updated version of its mobile software, iOS 4.2, which the company said would permanently fix the problem.  A newer version, iOS 5.0, is already out, but, just in case, iPhone users should probably set a backup alarm.

For 2012, Daylight Saving Time will start on March 11 in most of North America; in the European Union, Summer Time will start on March 25, leaving the U.S. out of sync with a good part of the world for two weeks (it used to be just one week).  Daylight Saving Time will end on November 4, 2012.

For the first time in 30 years Russia and Belarus are not setting their clocks back one hour for winter time.  This means that, instead of the time difference between Moscow and London being three hours as one might expect, it is now four hours.  In addition, most of Asia, Africa, and South America do not observe Daylight Saving Time at all.

The early change is in accordance with the Energy Policy Act of 2005 and once again is one week earlier later than in years before the 2005 Act. If you don’t think that these changes are a big deal, change the time on your laptop by an hour and see what happens. The impact of this seemingly minor change extends well beyond computers: among the most impacted are business travelers and mobile knowledge workers.

Over the past few years, I have noticed that several recurring appointments scheduled by colleagues outside of the U.S. using Microsoft Outlook mysteriously moved from, for example, 11 a.m. to noon – only in the week of March 13.  Subsequent meetings remained at the original time, e.g. 11 a.m. EDT. Apparently, we haven’t gotten all of the bugs out of the systems, as this seems to happen each time we change the clocks.

Click here to continue to Page 2 – What exactly is Daylight Saving Time? and What can you do to avoid problems?

Pages: 1 2

Accura News

Read previous post:
Qantas Cancels All Flights Worldwide

Qantas Airways, a member of the oneworld alliance,  has cancelled all of its domestic and international flights effective immediately and...