It is often fascinating to sit down and think about simple words. Although it sounds like something that might be heard in a science fiction movie the word time is defined as a nonspatial continuum in which events occur in apparently irreversible succession from the past through the present to the future.
Measurement of time is vital to the scientific process.
The time between two events is required to determine velocity, reflex activity, growth, radioactive decay, and anything which requires the measurement of a rate. Under those circumstances we thought we would focus on the mysterious entity known as time. The stick evolved into a sundial with hours indicated by a demarcated ring that was placed around the central obelisk. For most experiments a further granularity of time was needed. With a water clock, the passage of time was measured by counting drops of water dripping from a large container that had a small hole in the bottom.