Measurement implies comparison of somthing with a standard. For example, the comparison of the distance between the particles with the standard of meter is the measurement of the distance. When we speak about time measurement, nothing is compared. We just look on the whatch (of any principle or construction). In this sence, there is no such a procedure, as a measurement of time. Time is a parameter in classical or quantum mechanics. There is no operator of time in quantum mechanics, and time is not measurable value there.

In short its measurement of “relative length” of phenomenon

Measurement implies comparison of somthing with a standard. For example, the comparison of the distance between the particles with the standard of meter is the measurement of the distance. When we speak about time measurement, nothing is compared. We just look on the whatch (of any principle or construction). In this sence, there is no such a procedure, as a measurement of time. Time is a parameter in classical or quantum mechanics. There is no operator of time in quantum mechanics, and time is not measurable value there.