Question

Why do you need 23 days to count from 1 to 1 million?

Answer 1

This question is ambiguous. The time to count to 1 million could be more or less then 23 days. However, if someone counted to 1 million in 23 days nonstop, the interval between saying the next number would be 2 seconds.
See here for more information. https://www.quora.com/How-long-does-it-take-to-count-to-one-million