All animals can adapt their behavior based on past experiences, and are sensitive to the time of day and season.
But that does not mean they have the ability to sort the events of the past into an “inner calendar,” meaning they have no episodic sense of time.
Various investigations with rats, pigeons and monkeys point out that animals can remember how long an event occurred, but not when.
It is as if they are simply keeping a record of a fading memory, rather than putting them on an internal calendar.
The reason for this may be that having an autobiographical sense of the past depends on linguistic and numerical skills that allow you to create a calendar form.
According to other research, even humans do not have much episodic memory before they turn four.