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
Examples of 'proper time' in a sentence
proper time
`We will discuss all that at the proper time ," she said at last.
Taylor, Andy TOY SHOP (2002)
Chris knew what an effort he was making not to ask for a drink before the proper time.
Gaskin, Catherine THE AMBASSADOR'S WOMEN (2002)
Jett has hardly had any time off, I mean proper time off, for the last four years.