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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

She said the bill would be an “absolutely mammoth change” and would be done “without the proper scrutiny and the proper time to have a proper discourse about it”.

From BBC ● Nov. 24, 2024

“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

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