Do stimulants change how time passes

Yes, many people notice changes in time perception when taking stimulant medication, and this is a known effect. ADHD brains often struggle with internal time awareness, which can make time feel slippery or inconsistent. Stimulants improve focus and task engagement, but they can also make time feel faster when you are deeply focused or slower when attention is more evenly regulated. What you are noticing is usually not the clock changing but your awareness of it. When your brain is less distracted, you may stop checking time as often, which can make hours pass quickly. At other times, increased alertness can make you more aware of each minute. This variability is common and often settles as medication dosing and routines stabilize.