We have learned to approximate and then precisely measure time millennia ago through various means, yet never on this journey we learned to alter it, except by a miniscule margin using relativistic effects.
We can measure distance, and we can move things. We can measure illumination, and we can create light. We can measure sound, and produce it. Alter temperature? Yes! Produce all sorts of artificial radiation? Yes! Electric charge? Sure!
But time? Nuh-uh.
You can skip percieved time by sleeping.
You can also alter time by going fast. Satellites have to account for time dilation for their positioning.
Sure, that’s what I mentioned under relativistic effects
But it’s very minor and mostly hypothetical for anything but clock correction