Early in the day, when you’re bleary eyed, stumbling about in the fog of sleepiness, you’re probably at your creative peak. In contrast, if you’re a morning person, then for you, the evening is the best time for musing.
How come? Insight-based problem-solving requires a broad, unfocused approach. You’re more likely to achieve that Aha! revelatory moment when your inhibitory brain processes are at their weakest and your thoughts are meandering.