Anytime is the perfect time. Any day, you can sit down and make a list of the things that you'd like to focus on, the things that you think would add light to your life, and you can begin that day to move into that new energy.
After a moment "in the light" I feel like I can do anything, I can meet any challenge with greater ability, and I can give MORE love and light into the world just because it feels so good to do so.