Dawn Treader's Voyage sträcker sig över många månader, kanske ett helt år, men tidsgapet mellan de två böckerna anges uttryckligen precis i början av kapitel 2. Detta är strax efter Edmund , Lucy och Eustace räddades från havet:
"Where is Eustace?" asked Lucy.
"In bed," said Edmund, "and I don't think we can do anything for him. It only makes him worse if you try to be nice to him."
"Meanwhile," said Caspian, "we want to talk."
"By Jove, we do," said Edmund. "And first, about time. It's a year ago by our time since we left you just before your coronation. How long has it been in Narnia?"
"Exactly three years," said Caspian.
Jag minns inte (och skummade, såg inte) som uttalande i slutet om hur länge de var borta, men några stycken efter ovanstående citat anger Caspian sin avsikt om hur länge de kommer att segla :
"Right. Well, on my coronation day, with Aslan's approval, I swore an oath that, if once I established peace in Narnia, I would sail east myself for a year and a day to find my father's friends or to learn of their deaths and avenge them if I could. These were their names: the Lord Revilian, the Lord Bern, the Lord Argoz, the Lord Mavramorn, the Lord Octesian, the Lord Restimar, and - oh, that other one who's so hard to remember."
