The morning is the best time of the day to establish an intention. Doing this first thing in the morning greatly amplifies your intention giving a vitality and tenacity that it wouldn’t otherwise have.
Why? Because you have just come from deep sleep where all thought was temporarily suspended. You were free of the past and the future.
Just notice that, when you first awaken, the story of the past starts playing. If you interrupt that story and set an intention that is anchored in the now, the old story doesn’t get started and you get fresh energy and power.