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proper time

British

noun

time measured by a clock that has the same motion as the observer. Any clock in motion relative to the observer, or in a different gravitational field, will not, according to the theory of relativity, measure proper time

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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proper time

The paper, titled "Quantum signatures of proper time in optical ion clocks," appeared April 20, 2026 in Physical Review Letters.

From Science Daily ● May 18, 2026

Later, he adopted a habit of submitting the master tape of an episode so late there wasn’t proper time to review it.

From Salon ● Jul. 25, 2025

"We're hopeful that we have the proper time... to begin phase two, and finish it off and get more hostages released," he told CNN on Sunday.

From BBC ● Feb. 24, 2025

“Despite not having proper time, resources and staffing when things got tough I just did my best to handle it,” Ms. Gutierrez-Reed said in court, reading from a statement, her wrists shackled.

From New York Times ● Apr. 15, 2024

“Ernst? He’s going with us, then rejoining his unit in Berlin. It’s a shame you never spent any proper time together...”

From "The Light in Hidden Places" by Sharon Cameron

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023