Hi @Scout,
You cannot think your way into this, it is indeed experiential.
Have you ever experienced that when you are feeling good, time seems to fly while when you are sad or worried time seems to go on forever?
This is a perfect example of ‘personal’ time, it’s all coloured by ‘me’, how ‘I’ feel, what ‘I’ want (or don’t want).
Contemplate just this sentence: “To ‘be’ is to take this moment of being alive personally … as being proof of ‘my’ subjective existence” and then, in attentive contemplation become fascinated by the very fact that ‘you’ and 8 billion other people all have their own personal experience of time. It can’t be that time is like this, can it?
There is an alternative how to think about this – apperceptiveness. You can try it out in a quiet moment.
Richard: Being ‘alive’ is to be paying attention – exclusive attention – to this moment in time and this place in space. This attention becomes fascination … and fascination leads to reflective contemplation. Then – and only then – apperception can occur. (Library, Topics, Apperception)
Cheers Vineeto