Daylight savings has officially ended in New South Wales, South Australia, Tasmania, Victoria and the Australian Capital Territory. As the clocks shift back and evenings arrive a little earlier, many of us welcome the extra hour of sleep. But our bodies don’t always adjust quite so gracefully.
That subtle one-hour change can ripple through far more than just your morning alarm. From sleep quality to immunity, mood and even digestion, the end of daylight savings can act as a quiet but powerful stressor on the body.
Why a “small” time change can feel so big
Even though it’s only one hour, daylight savings disrupts something your body relies on every single day: your circadian rhythm.
This internal clock is regulated by light exposure and controls when you feel awake, when you feel tired, and even how your hormones fluctuate throughout the day. Research shows that even minor shifts to this rhythm can temporarily affect sleep quality, alertness and mood.
In the days after the clocks change, many people report feeling unusually tired, foggy or out of sync. That “off” feeling isn’t just in your head – your brain is actively recalibrating to a new light-dark cycle.
Sleep disruption and the knock-on effect on immunity
Sleep is one of the body’s most important recovery tools, and when it’s disrupted, everything else feels it too.
Studies have found that inconsistent or shortened sleep can impact immune function, including the activity of infection-fighting cells like T-cells and natural killer cells. In simple terms, when sleep is thrown off, your body may not respond as efficiently to everyday viruses.
At the same time, seasonal change often brings cooler temperatures and more time spent indoors, increasing exposure to common bugs. This combination can leave people feeling more run-down just as winter approaches.
It’s not unusual, then, for people to notice they’re more susceptible to colds, fatigue or lingering “almost sick” feelings in the weeks following the time change.
Mood, energy and the hidden stress of readjustment
Beyond immunity, daylight savings can also influence mental wellbeing.
Light exposure plays a major role in regulating serotonin and melatonin – the hormones linked to mood and sleep. When daylight hours suddenly shift, even slightly, it can contribute to low energy, irritability or a sense of sluggishness.
For some people, this seasonal transition can mimic a mild version of “winter fatigue,” where motivation dips and the body feels slower to catch up with daily demands.
The good news is that these effects are usually temporary. Most people recalibrate within a week or two, especially when they maintain consistent sleep and daily routines.
How to support your body through the seasonal shift
While you can’t stop the clocks changing, you can help your body adjust more smoothly.
Sleep experts often recommend sticking to consistent wake times (even on weekends), getting morning sunlight within the first hour of waking, and reducing late-night screen exposure to help reset the circadian rhythm faster.
Nutrition and hydration also play a key role. Supporting the body with nutrient-rich foods, warm meals and steady fluid intake can help reduce the fatigue that often accompanies seasonal transitions.
Wellness routines can also act as a grounding tool during this period. Some people choose to incorporate simple daily habits that support immune health and recovery, such as vitamin C-rich foods, anti-inflammatory ingredients like ginger and turmeric, or targeted wellness supplements. Wellness beverage brand BellyME, for example, has highlighted the importance of supporting immune health during seasonal transitions, particularly when the body is adapting to changes in sleep and temperature patterns.
Turning the time change into a wellness reset
Instead of viewing the end of daylight savings as a disruption, it can also be an opportunity, a natural reminder to reset habits, prioritise rest and check in with how your body is actually feeling.
As winter sets in, many Australians find this is the perfect moment to slow down, rebuild routines and focus on immunity and energy from the inside out.
Because while we may only move the clocks by one hour, the way we respond to that change can shape how we feel for weeks to come.
