proper time

British  

noun

1. 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

---

Example Sentences

As for the mid-week water change, the company believes that this is easily avoided with proper usage, such as showering before entering the hot tub.

From BBC • Jun. 3, 2024

Commissioner Goodell expressed an openness to consider the issue in January 2014, saying: “We will follow medicine and if they determine this could be a proper usage in any context, we will consider that.”

From The Guardian • Jan. 3, 2016

He sets the record straight regarding the term’s proper usage, explaining that the popular understanding of the disease has little to do with its actual symptoms.

From Slate • Jan. 26, 2013

Kevin Day still teaches the proper usage of "who" and "whom" in his International Baccalaureate English classes at Sumner Academy in Kansas City, Kan. "I think it's a matter of knowing your audience," he said.

From Seattle Times • Sep. 7, 2012

This is no proper usage which has obtained here in Greenland since Christianity was introduced here, to inter men in unconsecrated earth, with nought but a brief funeral service.

From The Northmen, Columbus and Cabot, 985-1503 by Olson, Julius E.