Wild guess philosophy of time

There is time as measured on a clock and there is subjective time.  

There is no reason for us to think that the measurements we make aren't of something real, as part of a larger reality we call space-time, and obeying the Lorentz transformations, which goes to show me our understanding of it has to be remarkably deep.  That doesn't mean subjective time is real -- it is an experience invented by our brain, using our experienced knowledge of how long things typically take to happen.

I think of time as quantized to unbelievably short moment intervals (Plank time or less), with nothing between them (each such moment ceases to exist and the next one takes its place).  They are like moves on a chessboard.  Each move is influenced by what has already happened, but still also has elements of will and of chance in it, but always must obey certain rules we call laws of nature.