Pet rats are active both during the day and at night, however, they are considered to be more nocturnal than diurnal.

Are Pet Rats Nocturnal?

Activity Patterns

1. **Daytime Activity:** Pet rats' activity level is usually lower during the day, which can vary depending on the individual rat's personality and lifestyle. They may spend their time sleeping, grooming themselves, or exploring their surroundings.

2. **Twilight Time:** As twilight approaches, pet rats become more alert and active. They may start to play, interact with their owners, and engage in various activities.

3. **Nighttime Activity:** During the night, pet rats are typically at their peak activity level. They may engage in various behaviors, such as exploring, running, digging, playing, and seeking food.

Factors Influencing Activity Patterns

1. **Natural Instincts:** Pet rats are descended from wild rats, which are naturally more active during the night when it is cooler and safer to forage for food and avoid predators.

2. **Domestication:** While domestication has altered the activity patterns of pet rats to some extent, they still retain some nocturnal instincts and may show a preference for nocturnal activity.

3. **Individual Differences:** Like humans, pet rats have their own unique personalities and preferences. Some rats may be more active during the day, while others may be more nocturnal. This can vary from rat to rat.

4. **Environmental Factors:** The environment in which pet rats are kept can also influence their activity patterns. Factors such as light, noise, and temperature can affect their sleep-wake cycles.

5. **Habituation:** Pet rats can habituate to their owners' schedules and routines. If they are regularly given attention and interaction during the day, they may become more active during those times.

In conclusion, pet rats are primarily nocturnal, but they can adapt to their owners' schedules and routines, exhibiting activity both during the day and at night.