The trip between London and Calais took roughly 3 hours. By the time that Jackson, Halia, Trisha, and Oliver drove out of the Channel Tunnel, the sun had risen. Factoring in the time difference between France and the UK, it was already 7am in the French port town of Calais.
Amelie and Alexander had stayed up all night, checking border crossings and tracing the location of Jean Louis. So, as soon as Jackson got the chance, he immediately gave Amelie a phone call to see if she had discovered anything.