Actually HRT experts say take in the AM to mimic cortisol and sex hormone circadian rhythm release BUT I do mine at lunch, especially sust, because I work out in the evening and the prop gives you a little energy buzz a few hours after injecting that makes my workouts sing. For deca it seems to make little difference to me. So the official answer is morning, but as you can see most people do what works for them and feels right. Besides, anabolic doses so far exceed HRT that your levels are jacked all day for several days, so the argument that you would in any way mimic natural hormone release seems rather vacuous.