Most lifters have felt it. The bar that flew up at 6 pm feels glued to the floor at 6 am. Research confirms the feeling is real, but it also shows something more useful: the time you train matters far less for long-term gains than the time you test, and your body adapts to whichever hour you choose. Why this matters Training time is rarely a free choice. Work, children, commutes and gym crowds decide it for most people. If the morning slot genuinely costs muscle or strength,