We all know what time is, but it is the most difficult concept to define.
Given something, it's always defined in terms of something else. That's the definition of a definition.
But if you look up the word "time" in a dictionary, it is defined directly or indirectly in terms of itself.
Self-defining...how strange. But time is a strange thing. When does it begin and is it ever going to end? Can it take a break and pause occasionally?
Some think time is but an illusion. Some say time is fair, some say it's the equlizer...
Does time have speed?
Time has speed and time is not fair.
It gets faster when you get older. It gets exponentially faster as age increases.
Einstein told us that E = mc2, well, I'd say S = ea, that is, speed of time (S), equals e raised to the power of a (age), where e is the familiar transcendental number.