internal clock
Inner time sense
The internal clock is the body's innate sense of time, regulating sleep cycles, hunger, and other biological rhythms without external cues.
My internal clock woke me at six even though the alarm didn't go off.
The term also describes an intuitive sense of timing: Her internal clock told her the meeting had gone on long enough.
- chronobiologyStudy of living timing patterns
- melatoninCircadian rhythm regulator
- desynchronizationLoss of coordinated timing
- sleep-wake cycleDaily pattern of rest
- sleep schedulePlanned hours of rest
chronotype · night owl · early bird · circadian rhythm · entrainment · light exposure · work shifts · jet lag · shift work · periodicity · biorhythms · time zones · pineal gland · homeostasis · noon · pulse · timing · running late
- time perceptiontime perception, duration, time flies, time drags, temporal distortion
- sleepsleep, sleeping, nap, doze, slumber
- body systemscirculatory system, digestive system, endocrine system, immune system, muscular system
- rhythmbeat, pulse, tempo, downbeat, upbeat
- sleep disruptionsinsomnia, jet lag, sleep apnea, sleep deprivation, sleep debt
internal clockwatch
Portable timekeeping device
clock · alarm clock · sundial · wall clock · stopwatch
internal clockmechanical clock
Gear-operated time device
digital clock · atomic clock · wristwatch · electronic timer · quartz clock
internal clockalarm
Urgent warning signal
time clock · punch clock · work schedule · timetable · clock-watching
clock, internal, external, internally, externally, internalize, externalize, internalized, internalizing