Moving clocks run slow.

Light does not experience TIME. 

Einstein' Theories of Relativity (General and Special) deal with two kinds of TIME.

The title about the General,  and the beginning of this post with the Special.

There are bizarre inferences that are arrived at unfeeling with time in both ways. 

Patanjala Yoga-sutra, Gita and other Classical texts like Veda (Shiva Atharva SheerShaM) have fundamentally quite an altogether different approach while describing about the nature of TIME. 

Shiva Atharva SheerSha notes :

अक्षरात्संजायते कालो कालाद् व्यापकः उच्यते,

This summarily points out that TIME, whether dealt with with reference to General theory of Relativity, or that of the Special Theory of Relativity,  is essentially just another aspect of SPACE only. 

The two that we know as 

Time-Space-Continuum, 

are the expression of One and Unique, 

Unifying Principle only.

Gita on the other hand deals with the TIME in two ways, The relative as-is pointed out in :

कालः कलयतामहम्, (chapter 10) and, 

अहमेवाक्षयो कालो, (chapter 10)

And again,

कालोऽस्मि लोकक्षयकृत्प्रवृद्धो

लोकान्समाहर्तुमिह प्रवृत्तः ।

(chapter 11).

Here, there is a special reference to 

TIME,  THAT is NOW, 

and is the conscious aspect / nature which is unrelated to PAST and FUTURE as is dealt with by the PHYSICISTS.

As J. Krishnamurti often repeats, 

"Observer is the Observed",

also applies at the two levels of TIME, at the phenomenal and at the absolute as well.

It is therefore only an intellectual problem if we are still unable to understand the nature of TIME. 

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