For some people, turning the clocks may mean excessive sleepiness and sleep deprivation during the spring and (finally) feeling well-rested once fall comes around. Either way, it can take some time before the body adjusts to the shift in daylight hours. But does this twice-yearly ritual actually affect our furry friends, too? Dr. Bethany Hsia, DVM and co-founder of animal end-of-life care network CodaPet, says daylight saving time change can indeed have an impact on our pets. While they may not be directly affected by the concept of time itself, she says the changes in our daily routines and schedules can have an indirect effect on their behavior and well-being. For example, dogs’ and cats’ circadian rhythms, or their body’s internal clocks, are considered to be naturally crepuscular, meaning they are most active at dawn and dusk—but they can also adjust to different sleep schedules. Domesticated dogs tend to follow their pet parents’ sleep schedules, leaning toward being diurnal, where they sleep at night and are awake during the day just like us. A study on sleep in dogs published in 2020 hypothesized this activity may reflect how our canine companions have adapted to our sleep schedules since domestication. It also found that dogs have a weaker circadian regulation with naturally shorter and more frequent sleep-wake cycles. Because of these differences when compared to humans’ circadian rhythms, dogs have greater flexibility in their sleep schedules and are more capable of adjusting to changes in routine. But though our pets are highly adaptable, they’re at their best when they have an idea of what the day holds. “Pets are creatures of habit and rely on a consistent schedule for their meals,” Dr. Hsia says. “When the clocks change due to daylight saving, their internal clock may not immediately adjust to the new feeding times.” This can lead to confusion and hunger, causing your pet to exhibit behaviors like begging for food or becoming anxious, she adds. Just as we adjust to “losing” an hour or “gaining” an extra hour of sleep, the time shift can also disrupt our pets’ sleep patterns. “Pets often have a keen sense of when it’s time to sleep or wake up based on external cues, like daylight,” Dr. Hsia says. “When the clocks change, these cues may no longer align with their internal clock, leading to confusion and potential sleep disturbances.” After moving the clock forward or backward, Dr. Hsia says pet parents should anticipate certain behavioral changes in their pets and plan accordingly. Some common behaviors may include anxiety, hunger and sleep disturbances—and understandably so. Drastic changes in routine may lead to our pets feeling especially stressed. After all, they’ve become accustomed to knowing what to expect every day. Signs of stress in pets may appear as: Loss of appetite Panting Changes in stool production Excessive grooming or shedding Excessive clinginess or avoidance Excessive vocalizing Increased sleeping Destructive behavior Potty accidents in the house Fortunately, making slight changes can make a big difference to your pet.,Jump to section Does DST Affect Pets? How To Help Your Pet Adjust to the Time Change Is Melatonin Safe for Pets? The Takeaway