internal clock
Americannoun
Etymology
Origin of internal clock
First recorded in 1955–60
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
During adolescence, the body's internal clock naturally shifts later, meaning teenagers tend to feel alert later at night than adults do.
From Science Daily ● Mar. 11, 2026
My internal clock wherever I am just knows it’s 4 p.m. and I get a little sad.
From Los Angeles Times ● Jul. 25, 2025
Prof Luscher said that - like the researchers suggest - it is "possible" that coffee drinking later in the day could disrupt out bodies internal clock at a time we should be resting.
From BBC ● Jan. 8, 2025
You really have to be thoughtful of your act structures and that internal clock.
From Salon ● Aug. 12, 2024
No. His internal clock doesn’t work that way.
From "Flying to the Moon: An Astronaut's Story" by Michael Collins
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
