I'd have thought it would be earlier too until I looked it up. I used to use

this website with ds1 for 11+ practice and it didn't seem unfamiliar to him. The actual maths isn't complicated even if the interpretation of the question might not be what they're used to though, so it could be regarded as a good indicator of the ability to apply mathematical reasoning.

The year 5 requirements do include "solve problems involving addition, subtraction, multiplication and division and a combination of these" which you could argue applies to time speed distance calculations. "Starting at 10.30 am, and travelling 460km at an average of 80 km/h, when will you arrive?" is just a simple division question really, with the resultant fraction then converted to get minutes, and the elapsed time added on to the starting time. Nothing there which isn't ks2 standard calculations, it just needs a little interpretation to find the sums required, and a couple of steps to get to the answer.