Time distortion from Diphenhydramine

Time distortion is the experience of one's subjective perception of time becoming significantly altered from its normal rate. This can manifest in two primary directions: time dilation, where time appears to slow down dramatically so that minutes feel like hours, and time compression, where long periods seem to pass in mere moments. Both forms fundamentally alter the relationship between experienced duration and clock time, creating a profound disconnect between internal and external temporal reality.

Time dilation is the more commonly reported form during intense hallucinogenic experiences. It appears to stem from the fact that abnormally large amounts of perceptual, emotional, and cognitive experience are compressed into very short periods of objective time. When one is processing an overwhelming density of novel information and sensation in each moment, the subjective impression is that far more time has passed than the clock would indicate. At its most extreme, individuals may feel they have subjectively undergone days, weeks, months, years, or even apparently infinite periods of time within a single experience lasting only hours.

Time compression, conversely, occurs when long periods of objective time pass without the person registering their full duration. This is more commonly associated with states of flow, absorption, or dissociation, where attention becomes so focused or detached that the normal markers of time passing go unnoticed. A person may emerge from a meditative or dissociative state believing only minutes have elapsed when hours have actually passed.

At lower intensities, time distortion manifests as a vague sense that time is moving unusually slowly or quickly. Checking a clock reveals a surprising discrepancy between estimated and actual elapsed time. At moderate intensities, the distortion becomes unmistakable and can significantly affect one's ability to plan or execute time-dependent tasks. At its peak, the very concept of linear time may seem to break down entirely, with past, present, and future feeling simultaneous or meaningless.

Time distortion is most commonly induced under the influence of moderate to heavy dosages of psychedelic compounds such as LSD, psilocybin, DMT, and mescaline, as well as dissociatives like ketamine and cannabis. Stimulants can produce time compression, while depressants may contribute to either form. The effect is often accompanied by thought loops, novelty enhancement, memory suppression, and internal hallucinations.