Daylight Saving Time - the basics - 13 WTHR Indianapolis

Daylight Saving Time - the basics

Indiana will once again move to Daylight Saving Time with most of the country.

Officially, at two a.m. Sunday, March 11 time moves ahead one hour to 3 a.m.

However most people will change their clocks before going to bed Saturday night or after waking up Sunday morning.

Daylight Saving Time will give Hoosiers and extra hour of daylight on summer evenings, but sunrise will also be an hour later.

On Sunday, November 4 clocks move back one hour.

Some of the affects of the time change are that golf courses and parks, which usually operate sunup to sundown, could see a boon.

With the time change, all Channel 13 programming will remain at the same time. If your favorite show starts at 8 p.m. before Daylight Saving Time begins, that show will start at 8 p.m. after Daylight Saving Time begins.

NEW: Because the DST change is coming earlier than usual this year, your computer and other electronic devices may need a patch installed. (For more about this problem, see this AP story.)

Microsoft - DST update for Windows

Microsoft - Updating Windows Mobile devices

Mac - DST update (Tiger)

More info for Mac users on the time change

From Verizon Wireless: "Customers with BlackBerry devices and most PDAs/smartphones running Palm OS or Windows Mobile will be required to update or patch their devices.

If you are an individual or personal computer user, your computer may require an update in order to support the updated Daylight Saving Time rules. If necessary, please ensure that your computer is updated prior to updating your mobile device."

More about DST:

With Daylight Saving Time Indianapolis is on the same time as New York for the entire year.

Without Daylight Saving Time Indianapolis spent five months on the same time as New York and seven months on the same time as Chicago.

Most of Arizona and all of Hawaii will remain the only parts of the country not switching to Daylight Saving Time.

History of Daylight Saving Time in Indiana:

  • Until last spring, under state law, most of Indiana had ignored Daylight Saving Time since the early 1970s. Seventy-seven counties observed Eastern Time but didn't change clocks. Five were on Eastern time and unofficially observed Daylight Saving Time, and ten were on Central Time, observing Daylight Saving Time.
  • Governor Mitch Daniels pushed the Daylight Saving Time switch, saying it would end the confusion and promote commerce. Lawmakers passed the measure by a single vote in an emotional debate.
  • Eighteen counties asked the US Department of Transportation to put them in the Central Time Zone to be aligned with Chicago. The federal government granted the requests for eight counties, which put 18 counties on Central Time and 74 on Eastern.

One of the main reasons for implementing Daylight Saving Time is energy conservation. Since we'll have sunlight one hour later, yet we'll still go to bed at the same time, we save energy.

Studies done in the 1970s by the U.S. Department of Transportation show that the entire country's electricity usage was trimmed by about one percent each day with Daylight Saving Time.

The U.S. Department of Transportation, which has jurisdiction over Daylight Saving Time in the U.S., studied the results of an experiment. It concluded:

  • Daylight Saving Time saves energy. Based on consumption figures for 1974 and 1975, The Department of Transportation says observing Daylight Saving Time in March and April saved the equivalent in energy of 10,000 barrels of oil each day, a total of 600,000 barrels in each of those two years.
  • Daylight Saving Time saves lives and prevents traffic injuries. The earlier Daylight Saving Time allowed more people to travel home from work and school in daylight, which is much safer than darkness. And except for the months of November through February, Daylight Saving Time does not increase the morning hazard for those going to school and work.
  • Daylight Saving Time prevents crime because people get home from work and school and complete more errands and chores in daylight. Daylight Saving Time also seems to reduce people's exposure to various crimes, which are more common in darkness than in light.

An old saying to help you remember how to change your clocks is, "spring forward, fall back."

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