As far as Eastern concept is concerned -You are right that only ‘Now’ exists, time exists not. In India we call anything ‘Exists’ for anything that has no beginning and end.
West treat ‘Existence’ as what can be measured.
In my opinion Consciousness is not called as Brahman, instead the person who has experienced the Consciousness as it is, through third eye, is called as Brahman. Consciousness may be called as Bramha-word for that which is constant, infinite and expanding too. Truth cannot be expressed without adding contradictory, because it included both and beyond both too!