Einstein’s Theory of Relativity posits that time is relative. A Kantian would insist that time is a form of intuition. However, a Fool -- indeed, the Fool in As You Like It -- aptly describes time as an unforgiving, continuous series of hours:
“It is ten o’clock.
Thus we may see,” quoth he, “how the world wags.
’Tis but an hour ago since it was nine,
And after one hour more ’twill be eleven.
And so from hour to hour we ripe and ripe,
And then from hour to hour we rot and rot,
And thereby hangs a tale.” (2.7.23-29)