Our 'flow of perception' (rate at which we perceive things) is what stimulate our consciousness to create time.
Living through dense matter influences us to perceive one thing after another, at a rate that varies from one individual to another.
The 'flow of perception' is subjective, and chronometers, are our attempt at synchronizing this flow.
Being ignorant of heart synchronicity; we depend mostly on mind generated synchronicities, thus experiencing the passage of time.
On the other-hand, eternity is where we keep our heart focused on trusting implicitly in the Intelligence of Synchronicity and become unaware of the passage of time; knowing that we will always be in the right place at the right time.
Time is to mind, as eternity is to heart. Both are choices that are dependent upon our awareness of 'who and what we are.'HOM
Human Beings God is love
Messier 81 - Courtesy NASA/JPL/Caltech/University of Arizona/Harvard-Smithsonian Center for Astrophysics/NOAO/AURA/NSF