Certainly for atomic clocks (nearly the very definition of precision), but the vast majority of lab work isn't anywhere near that level of precision. So yes, yo

Certainly for atomic clocks (nearly the very definition of precision), but the vast majority of lab work isn't anywhere near that level of precision. So yes, you may need to factor in GR if your goal is to measure the smallest possible thing, but for general work with macroscopic items, it's such a small difference it is completely unnecessary.