At an everyday level, the change would not be perceptible. However, it would be obvious from cosmic scale measurements tracking the course of the universe over billions of years. The change would be infinitesimally slow from a human perspective, but in terms of the vast perspective of cosmology, the study of ancient light from suns that shone billions of years ago, it could easily be measured

Difficult to fathom.

Ah, humans invented time

Time has always existed...along with matter and energy. What we "invented" was a way to measure it with some degree of accuracy.

ok

There goes the leap years

i had a feeling there is not much Time left!! .... -))

Wouldn't our instruments be subject to the same changes, making an objective measurement impossible from within the frame being measured?

How do we get outside of relativity?

LSD