Smoke Alarm Check Before Clocks Fall Back Nov. 1, 2026: Test Now, Replace by Age

U.S. clocks fall back at 2 a.m. local time on Sunday, Nov. 1, 2026 (daylight saving time ends; Hawaii and most of Arizona do not change), and the U.S. Fire Administration (USFA), part of the Federal Emergency Management Agency (FEMA), says to test smoke alarms monthly. The clock change works as a twice-a-year reminder to do the full check: test every alarm, look at its age and decide what needs replacing. Our one-page printable below turns that into ticks.

What does the U.S. Fire Administration say to check on a smoke alarm?

The USFA “Smoke alarms” page, which we checked on Oct. 31, 2026, gives four rules in plain terms:

• Test: “Test the alarm monthly.”
• Replace: “Replace the entire smoke alarm every 10 years.”
• Place: put alarms “in every sleeping room, outside each separate sleeping area, and on every level of your home, including the basement.”
• Link: “Choose interconnected smoke alarms so that when one sounds, they all sound.”

If you cannot afford an alarm, the same page says some fire departments will install battery-operated smoke alarms in your home at no cost.

Does every smoke alarm need a new battery when the clocks change?

No. USFA describes two kinds of battery alarm. One runs on “a disposable 9-volt battery”; the other has “a nonreplaceable 10-year lithium-ion (‘long-life’) battery.” A sealed long-life alarm has no battery to swap, so for that alarm the job on Nov. 1 is a test and a look at its age. Hardwired alarms, USFA says, “have a backup battery that will need to be replaced once a year.”

Alarm type	What USFA says	What to do on Nov. 1
9-volt battery alarm	Runs on a disposable 9-volt battery	Press the test button; replace the battery if you are replacing it
Sealed 10-year lithium-ion alarm	Battery is nonreplaceable	Test it and check its age; no new battery
Hardwired alarm	Has a backup battery replaced once a year	Test it and replace the backup battery

The USFA text we used gives no replacement schedule for the 9-volt battery, so we do not set one.

How old is my smoke alarm? Replace-by years under the 10-year rule

USFA’s handout “Don’t Wait, Check the Date!” says to look at the back of the alarm for the date of manufacture and to replace the alarm 10 years from that date. Because USFA says to replace the entire alarm every 10 years, we computed the year each alarm turns 10 by adding 10 to its year made. This is our arithmetic from the USFA rule, not a USFA table.

Year made	Turns 10 in	What to do
2016 or earlier	2026 or earlier	Replace now
2017	2027	Replace in 2027
2018	2028	Replace in 2028
2019	2029	Replace in 2029
2020	2030	Replace in 2030
2021	2031	Replace in 2031
2022	2032	Replace in 2032
2023	2033	Replace in 2033
2024	2034	Replace in 2034
2025	2035	Replace in 2035
2026	2036	Replace in 2036

Where should smoke alarms go in the house?

Use the printable as a walk-through list. USFA’s placement rule gives these spots to tick:

1. Each bedroom (every sleeping room).
2. The hallway outside each separate sleeping area.
3. Every level of the home.
4. The basement.

Interconnected alarms are the USFA’s pick because one alarm sounding sets off all of them.

Smoke alarm check dates: this clock change and the next two

U.S. daylight saving time runs from the second Sunday in March to the first Sunday in November. The Nov. 1, 2026 end date and the 2 a.m. switch are in the daylight saving time story, which cites the National Institute of Standards and Technology (NIST) and the U.S. Naval Observatory. The next two switches, with weekdays computed:

Clock change	Date	Smoke alarm check
Daylight saving time ends	Sunday, Nov. 1, 2026	Test all alarms, check dates
Daylight saving time begins	Sunday, March 14, 2027	Test all alarms
Daylight saving time ends	Sunday, Nov. 7, 2027	Test all alarms; hardwired backup battery

The March and November dates are the next two changes under current law. Write them on the November 2026 printable calendar and the March 2027 printable calendar. USFA’s monthly test still applies between clock changes. For what the change does to evenings, see sunset times after the clocks fall back, and for Canada, see which provinces skip the change.

Print the smoke alarm checklist

The free sheet has four sections (Test, Replace, Place, Plan), a tick box for each alarm location and a lined area for writing down where each alarm is and the year on its back. The ink-saver version prints in black and white.