What relevant scale do I have with which to measure time?

But years are a foolish way to measure time where nothing changes.

It seemed hours, but how could one measure time in such circumstances?

We now measure time by a complete cycle of these particular times.

Through them we may measure time, space, quality and quantity.

To measure time, something you can detect must be moving.

She ought not to have been gone so long, yet she'd no way of measuring time.

This would be a hard world in which to measure time or distance.

How do you measure time in a gray box with no windows?

Only during the last four has it been possible to measure time with any precision.