Adjusting to Daylight Saving Time: How to Reset Your Sleep and Routine

The arrival of Daylight Saving Time often catches many people unprepared. When clocks move forward by one hour, evenings become brighter, but the sudden loss of sleep can leave individuals feeling tired, unfocused, and out of sync with their daily routines. Although experts recommend gradually adjusting sleep schedules before the change, busy lifestyles mean many people do not prepare in advance.

Even a one-hour shift can disrupt the body’s internal clock, known as the circadian rhythm. This natural system regulates sleep and wake cycles based largely on exposure to light and darkness. When the time suddenly changes, the body continues to operate according to its previous schedule, making it harder to fall asleep at night and wake up in the morning.

One reason for this difficulty involves melatonin, the hormone that signals the body when it is time to sleep. After the clocks move forward, melatonin may still be released according to the old schedule. As a result, people may not feel sleepy at their new bedtime and may struggle to wake up at the appropriate time. The experience can feel similar to mild jet lag, where the body’s internal clock does not match the local time.

Some individuals experience stronger effects than others. Losing an hour of sleep is typically more challenging for the body than gaining one. People who already suffer from sleep deprivation may feel the impact more intensely, as the additional sleep loss can worsen fatigue and reduce concentration. Children, teenagers, shift workers, and those with irregular sleep patterns may also find it harder to adapt.

For most people, adjusting to the new schedule takes a few days, although some may require up to a week. Establishing consistent habits can speed up the process. Going to bed and waking up at the same time each day helps reinforce the body’s internal rhythm. Exposure to morning light is especially important because sunlight signals the brain that it is time to be alert and suppresses melatonin production.