What is proper time?
A)Proper time is the time measured by a clock at rest with respect to the observer.
B)Proper time is time based on your actual longitude,not your time zone.
C)Proper time is the time given on your GPS.
D)Proper time means standard time as opposed to daylight savings time.

Question

Quizplus · Accepted Answer

Proper time is the time measured by a clock that is stationary relative to the observer. It takes into account time dilation due to special relativity and can be different for observers in different reference frames.

What Is Proper Time