FALLBACK1Daylight Saving Time ends at 2 a.m. Sunday, November 1, which means you need to turn your clocks back an hour before you go to bed Saturday night, October 31. The annual tradition signals the official start of shorter days.

Here are some random facts about this annual clock change:

  • Although many people say Daylight Savings Time, it’s technically wrong. There’s no “s” on Saving.
  • Why do we do this in the first place? Blame Benjamin Franklin. He wrote an essay called “An Economical Project for Diminishing the Cost of Light” suggesting people could save candles by getting up earlier and making better use of available light. The idea later caught on in England and it was brought to America.
  • In September 1999, the time change prevented a terrorist bombing in Israel. The West Bank was on Daylight Saving Time while Israel had just switched back to standard time. West Bank terrorists prepared time bombs and smuggled them to their Israeli counterparts, who misunderstood the time on the bombs. As the bombs were being planted, they exploded — one hour too early — killing three terrorists instead of the intended victims–two busloads of people.
  • In the spring, that hour of lost sleep due to Daylight Saving Time has been linked to an increased risk of heart attacks. In the fall, when an hour is added back to the clock — like it will be this weekend — the risk of heart attacks falls by 21 percent.
  • Since 2007, all of Indiana now observes Daylight Saving Time, where only certain areas of the state did before. Hawaii and most of Arizona do not follow it.