When Earlier Darkness Makes Evenings Harder: Sundowning and Time Change

On Nov. 1, clocks fall back one hour. For many people, the change is barely noticeable. For clients living with dementia, the darkness arriving earlier can disrupt routines that help them feel oriented and secure.

Caregivers often notice first. A little preparation helps them know what to look for and what to do.

Why the body’s clock matters

Light is one of the main cues that keep the body’s internal clock, also called the circadian rhythm, on schedule. In people living with dementia, changes in the brain can affect that clock and lead to confused sleep-wake cycles. When the clocks change, mealtimes, medication times, and bedtime can fall out of step with what the body expects, and the earlier sunset can bring more confusion, restlessness, or anxiety in the late afternoon and evening. This pattern is often called sundowning. Researchers don’t know its exact cause, and a disrupted body clock is one of several factors.

Not every client will be affected. For some, the disruption eases as routines catch up, and for others it can last through the winter. Watch closely for the first few weeks, and keep watching after that.

Signs someone is struggling with the time change

• Restlessness or pacing as the light fades

• More confusion about time, place, or whether it’s day or night

• Irritability, agitation, or anxiety in the late afternoon or evening

• Trouble settling at bedtime, or waking at night and getting ready for the day at the wrong hour

• Resistance to meals, medication, or the bedtime routine at the usual times

• Wanting to leave, often to go home or find someone, which raises safety concerns once it’s dark

  
  

Some of these may mean a client’s body clock is out of step with the new schedule, especially trouble settling at night or confusion about whether it’s day or night.

How caregivers can help

Get daylight early. Morning light helps keep the body’s circadian rhythm steady, and daytime light can support sleepiness at night.

Turn on lights before dusk. Don’t wait for the room to dim. Shadows can be confusing, and night lights along the path to the bathroom help prevent falls.

Keep routines steady. Stay with the usual meal, medication, and activity times. If something needs to shift, move it in small steps over several days.

Put busier activities earlier. Bathing, outings, and appointments tend to go better in the morning or early afternoon, which leaves evenings calmer.

Keep evenings quiet. Lower the noise, keep visitors to a minimum, play soft music, and limit caffeine and sugar later in the day.

Respond with reassurance. If a client is confused about the time, correcting them rarely helps. Acknowledge how they feel, then gently redirect with a snack, a short walk, or a familiar task.

Check the basics. Hunger, thirst, pain, a need for the bathroom, and missing glasses or hearing aids can all look like evening confusion.

When to raise a concern

A sudden or sharp change in confusion can have a medical cause, such as an infection, pain, or a medication issue, and shouldn’t be put down to the time change. Caregivers should report it to the agency right away so the family and the client’s doctor can be looped in. The same goes for any attempt to leave the home or a fall.

Caregivers and families can also call the Alzheimer’s Association 24/7 Helpline at 800.272.3900 any time, day or night, for free information, local resources, and support.

What agency owners can do this week

• Brief your caregivers before Nov. 1. Share the signs above so everyone is watching for the same things.

• Ask families for a baseline. What do evenings look like now? It’s much easier to spot a change when you know what normal looked like.

• Record what caregivers notice. Notes in the client’s record make patterns visible across shifts and caregivers.

• Protect familiar faces. If a client does better with a particular caregiver in the evening, keep that caregiver on the schedule where you can.

A little preparation before the clocks change can make the transition smoother for clients and caregivers alike. Share these reminders before Nov. 1 so everyone knows what to watch for and how to respond.