# When are non-Daylight Saving Time areas reminded to replace smoke detector batteries?

**URL:** <https://boards.straightdope.com/t/when-are-non-daylight-saving-time-areas-reminded-to-replace-smoke-detector-batteries/470922>\
**Category:** Factual Questions\
**Created:** [November 3, 2008, 8:53pm UTC](https://boards.straightdope.com/t/when-are-non-daylight-saving-time-areas-reminded-to-replace-smoke-detector-batteries/470922 "2008-11-03T20:53:26Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![survineer](https://avatars.discourse-cdn.com/v4/letter/s/439d5e/32.png) [@survineer](https://boards.straightdope.com/u/survineer)\
**Post date:** [November 3, 2008, 8:53pm UTC](https://boards.straightdope.com/t/when-are-non-daylight-saving-time-areas-reminded-to-replace-smoke-detector-batteries/470922/1 "2008-11-03T20:53:26Z")

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Setting clocks and replacing smoke detector batteries have always gone together for as long as I can remember. But this past weekend I started wondering what areas that do not practice DST do to remind people to replace their batteries. Arizona? Hawaii? Are you out there?

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**Author:** ![Geek\_Mecha](https://avatars.discourse-cdn.com/v4/letter/g/ecae2f/32.png) [@Geek\_Mecha](https://boards.straightdope.com/u/Geek_Mecha)\
**Post date:** [November 3, 2008, 9:04pm UTC](https://boards.straightdope.com/t/when-are-non-daylight-saving-time-areas-reminded-to-replace-smoke-detector-batteries/470922/2 "2008-11-03T21:04:34Z")

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In Hawaii, we wait for the detectors to start their low-battery beeping.

My mom also used to write the date she changed the battery on a little Post-It inside the detector.

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**Author:** ![Sapo](https://avatars.discourse-cdn.com/v4/letter/s/ec9cab/32.png) [@Sapo](https://boards.straightdope.com/u/Sapo)\
**Post date:** [November 4, 2008, 1:05am UTC](https://boards.straightdope.com/t/when-are-non-daylight-saving-time-areas-reminded-to-replace-smoke-detector-batteries/470922/3 "2008-11-04T01:05:35Z")

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Puerto Rico here, also when they start beeping like all get out in the middle of the night.

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**Author:** ![Richard\_Pearse](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/richard_pearse/32/13144_2.png) [@Richard\_Pearse](https://boards.straightdope.com/u/Richard_Pearse)\
**Post date:** [November 4, 2008, 9:58am UTC](https://boards.straightdope.com/t/when-are-non-daylight-saving-time-areas-reminded-to-replace-smoke-detector-batteries/470922/4 "2008-11-04T09:58:28Z")

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How do you remember to replace the batteries on other things? It stops working, starts beeping, or gives some other warning signal and you change them.

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**Author:** ![Harmonious\_Discord](https://avatars.discourse-cdn.com/v4/letter/h/74df32/32.png) [@Harmonious\_Discord](https://boards.straightdope.com/u/Harmonious_Discord)\
**Post date:** [November 4, 2008, 11:27am UTC](https://boards.straightdope.com/t/when-are-non-daylight-saving-time-areas-reminded-to-replace-smoke-detector-batteries/470922/5 "2008-11-04T11:27:06Z")

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They beep. For rentals and public buildings they have to do it on a schedule. I just remember it as fall maintenance.

Did you change your carbon monoxide detector cartridge too?