internal clock
noun
1
: a system in the body that controls when a person needs to sleep, eat, etc.
The long trip upset my internal clock and I had a hard time getting to sleep.
2
: a clock or timing device that is inside a computer
Examples of internal clock in a Sentence
Recent Examples on the Web
On this particular morning, my internal clock is still on San Francisco time.
—
R29 Team, refinery29.com, 14 Oct. 2024
One set of genes that the birds seem to leave untouched are those responsible for their internal clock.
—Bob Holmes, Smithsonian Magazine, 9 Oct. 2024
But if not, here’s a crash course: The circadian rhythm is the body’s internal clock.
—Marie Bladt, Vogue, 10 Oct. 2024
Your circadian rhythm is your body's internal clock that dictates sleep and wake times over a 24-hour period.
—Sanja Jelic, Verywell Health, 3 Oct. 2024
See all Example Sentences for internal clock 
R29 Team, refinery29.com, 14 Oct. 2024
One set of genes that the birds seem to leave untouched are those responsible for their internal clock.
—Bob Holmes, Smithsonian Magazine, 9 Oct. 2024
But if not, here’s a crash course: The circadian rhythm is the body’s internal clock.
—Marie Bladt, Vogue, 10 Oct. 2024
Your circadian rhythm is your body's internal clock that dictates sleep and wake times over a 24-hour period.
—Sanja Jelic, Verywell Health, 3 Oct. 2024
See all Example Sentences for internal clock
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'internal clock.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near internal clock
Cite this Entry
“Internal clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/internal%20clock. Accessed 5 Nov. 2024.
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