We get different definition of time? the indefinite continued progress of existence and events in the past, present, and future regarded as a whole. Time in physics is defined by its measurement: time is what a clock reads. In classical, non-relativistic physics it is a scalar quantity and, like length, mass, and charge, is usually described as a fundamental quantity.
But in physics can we have a deep answer?
Time is a human construct that only exists in the virtual world of mathematics. It's like someone trying to prove there is a relationship between the circumference of a circle and the diameter. There is no relationship it's an approximation. What was 1 second before atomic clocks? A made up number that continues to evolve. Now it's some arbitrary value of atomic decay. Unlike the charge of an electron that remains constant throughout the universe.
