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
The logic here is to reset the body’s natural rhythms through fasting and immediate physical activity to align one’s internal clock with the new local time before introducing any food.
—
Preston Fore, Fortune, 2 July 2025
Room lighting mimics the natural light spectrum, helping reset the body’s internal clock.
—Nel-Olivia Waga, Forbes.com, 2 July 2025
But that doesn't work, Burgess explained, because the expert used calls that Read made when her car was powered off, so the vehicle's internal clock had nothing to do with them.
—Michael Ruiz , Julia Bonavita, FOXNews.com, 21 May 2025
This probiotic produces a compound known as SAM (S-adenosylmethionine), which helps regulate the body's internal clock and supports the production of melatonin, a hormone that promotes sleep.
—Lucy Notarantonio, MSNBC Newsweek, 21 June 2025
See All Example Sentences for internal clock
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Preston Fore, Fortune, 2 July 2025
Room lighting mimics the natural light spectrum, helping reset the body’s internal clock.
—Nel-Olivia Waga, Forbes.com, 2 July 2025
But that doesn't work, Burgess explained, because the expert used calls that Read made when her car was powered off, so the vehicle's internal clock had nothing to do with them.
—Michael Ruiz , Julia Bonavita, FOXNews.com, 21 May 2025
This probiotic produces a compound known as SAM (S-adenosylmethionine), which helps regulate the body's internal clock and supports the production of melatonin, a hormone that promotes sleep.
—Lucy Notarantonio, MSNBC Newsweek, 21 June 2025
See All Example Sentences for internal clock
Cite this Entry
“Internal clock.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/internal%20clock. Accessed 20 Jul. 2025.
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