chronophobia means fear of the passing of time, or more generally of time itself. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “chronophobia” is a great word
CHRONOPHOBIA — [Noun] A profound, often paralyzing dread of the relentless passage of time or of time itself as a concept. From the Ancient Greek χρόνος (khrónos, "time") + φόβος (phóbos, "fear"). Unlike gerascophobia, which fixates on the physical decay of aging, or kairophobia, which flinches at missing a pivotal moment, chronophobia is a formless terror of the river's current itself. It is the vertigo of watching sand drain through an hourglass, the silent panic that grips one in the profound stillness of a sleepless 3 a.m., and the hollow dread that fills an unmarked Sunday afternoon—the visceral understanding that you are standing on a moving walkway with no off-ramp, afraid not of what time will do, but of the fact that it is always, already, doing it.
Etymology
From Ancient Greek χρόνος (khrónos, “time”) + φοβος (phobos, “fear”). Equivalent to chrono- + -phobia.
noun
- Fear of the passing of time, or more generally of time itself.