Consistency matters more than the exact hour.
Our guide on the morning routine describes the page's suggested approach. Taking it with food may be easier on the stomach. Because ginseng and other botanicals can be stimulating for some people, taking it late may affect sleep for them.
We cannot say what suits you.
Pick a time you will remember, such as with breakfast, and link it to something you already do. If you notice poor sleep, try earlier. Keep the time consistent so your log is comparable.