Protein timing matters most when it helps you stay consistent with your overall daily intake. For most people, the easiest and most effective timing window is right after training or between meals.
If your workout is long or intense, a quick-digesting whey shake can support recovery by delivering amino acids rapidly. Pairing it with carbs may help replenish glycogen for athletes training frequently.
Morning lifters often benefit from whey after the session, while evening lifters can use whey as part of dinner or a late recovery snack. The real goal is hitting your daily target with high-quality protein.