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What is time? The passing seconds, hours and days? The past, the present and the future?

We do not exactly know, yet. But the concept of time has been around in all civilizations, Religion, philosophy, science even poetry and arts. The concept of time has always been there.  After all it is the time that spends us. Nobody sane (and human) can ignore thinking about this.

By common sense, we all understand there was a past, there is a present and most likely there will be a future. The events are interconnected the past affects the present and the present will affect the future.
There is a causality, and anything can only affect the future events it cannot have any impact on the past.
Such concept also make it interesting to think about paradoxes when we consider the time travel.

Concept of time in Philosophy and Religion

All religions deal with the concept of time in their own way. While some are quite similar, others differ from each other. But most of them go like, at t=0; God created the stars, earth etc. He set the things in motion. Some religions also talk about cyclicity of time. How eras come and go. And how they will come again. They talk about a past- where we did something, and we are being rewarded or punished for it now. It also talks about how our present behavior will influence our future.
Time helps religion to establish a good behaviour norm in society. It helps them calm the quirky minds who would otherwise fall into despair or revolt.
Astrology, which hovered very closely between religion, philosophy and sometimes even science, is a way to predict one’s future based on one’s past and present.

Concept of time in Science

Time was considered absolute and sacrosanct in the world of physics until Einstein came along in the early 20th century. What he said was something more fundamental and purer about the nature of the universe. His entire reasoning was based on the logic that “laws of physics would be same for everyone irrespective of their nature of (non-accelerated) motion.”
This therefore posed a new challenge. From different experiments and observations, we had found that speed of light remains constant through all conditions. So, if somebody is moving and still observing the same speed of light as we do- then they must experience the space and the time differently.
This opened up a new branch of science. Time cannot be absolute. Every observer will experience it differently so that their experience about the laws of physics remain same. It further goes on to talk about the factors of time dilation, space dilation etc. It also gave raise to topics of paradoxes like “Twin brother paradox”.


Time is definitely a fabric that helps us understand a lot about the universe. But, as physics puts it, perhaps our experiences of physical laws are more fundamental than the time itself. And that goes in sync with philosophy also.
You may be 50 years old, but how many days have you lived? How many days do you remember? Only that part is the meaningful life.
As an old dialogue goes-
“Do not count the life in days but count the days in life.”