I'd say the best time would be as early as possible, once you've already begun the day. What I've found that seems to be true for me is I write my best stuff earlier in the day. When it gets late, I'm less focused, and a little tired. This is when I like to shift my focus to tweaking things or reading other people's posts.
However, you might find that you are just the opposite. There are people who are more creative at night, and write new material then. The next morning or afternoon, they proofread what they wrote and clean it up.
I enjoy not having to stay on one thing for too long late at night, which is why at that point I prefer surfing and learning new things, rather than outputting more material. I feel better and more productive when I work that way.
And I've learned that if I start to write as soon as I sit down at the computer, the ideas just pour out, vibrant and clear. It's a good feeling.If you enjoyed this post, I'd be delighted to have you as a subscriber to my RSS feed.