SMOKE DETECTORS: Will all of you remember to set your clocks back one hour on Sunday?

Daylight Saving Time is ending, and, as Allstate is reminding readers, it’s a great time to check smoke detectors and change their batteries, too. Smoke detectors are the kind of thing you don’t really think about until they’re going off — but it’s also the kind of thing that, when you need it, you just want it to work.

The company also recommends replacing smoke detectors every 10 years. Keep one on each floor, and especially keep one in hearing distance of every sleeping area.

The spring ahead/fall behind days are great days to plan annual or semiannual tasks, as they’re easy to remember. Do any of our readers have other annual tasks they plan to do Sunday?

According to the Astronomical Applications Department at the U.S. Naval Observatory, the Standard Time Act of March 19, 1918, established by law time zones in the United States and even the idea of daylight saving time.

However, national daylight saving time was repealed the next year, making it a local matter, then was established again on a national level during World War II and ending Sept. 30, 1945. Fifty years ago, the Uniform Time Act of 1966 offered standard dates for places that still used daylight saving time.

There were other changes over the years, but the current dates we follow began in 2007. There are still places, including Hawaii and most of Arizona, that do not use daylight saving time, according to the department.

CNN: On Friday, Linda Devlin, executive director of the Allegheny National Forest Visitors Bureau, sent us some exciting news.

“Pretty cool, the Kinzua Skywalk is on CNN.com.”

The mention is in the travel section, in a story called “15 Scary-But-Awesome Viewing Platforms.” The Skywalk made #6.

The first is the Shanghai Skywalk in China, a glass walkway on the outside of a building 1115.49 feet above the city; second is Brighton i360, the world’s tallest rotating observation platform; Skyslide at Skyspace in Los Angeles, a glass chute on the outside of a building; Dachstein Stairway to Nothingness in Austria; and then Tokyo Skytree Observation decks. That’s some pretty good company.