I have to say, high level Chronomancers make excellent melee fighters; they do get the ability to, by 10th level, get Full BAB, a bonus to hit and damage (not a big one, but still), and an extra two attacks at their highest attack bonus.
For two rounds.
Now, that might not be up to Cleric standards, but it is quite loverly, especially if you pick just the right PrCs...
Chronomancer's Blade just makes it better.