[syriacus]

However, I usually roast chicken at about 400 the entire cooking time, basting regularly.

I'll try that sometime. It would be nice to speed up the time it takes to roast a chicken.

[visualops]

If you really want to save time, split the chicken in half and roast at high heat (475-500) in the upper part of the oven or broil starting bone side up and turn halfway through. You may have to experiment with cooking time depending on weight but you’re probably looking at about 30-40 minutes.
Very good with oregano, salt & pepper, then dash with lemon juice in the last 5-10 minutes.

[Lurker]

It would be nice to speed up the time it takes to roast a chicken.

Try this trick.

Turn the whole chicken breast side up. Slide a large, sharp butcher knife into the cavity along one side of the backbone. Chop down to separate that side cleanly. Then do the other side. Remove the backbone and save it for stock making.

Now flip the bird over and pull it apart making a 'flat' chicken. Season the bird liberally on both sides and roast it on a bed of celery, carrots, and onions.

You'll find the bird is ready in about 45 minutes as you've reduced the surface to mass ratio.

L