Pantoum: All the time there is

The prompt for this was a composite photo of many different clock faces. I can’t find the picture now (note to self: save things!) but you all know what a clock looks like!

All the time there is

All the time there is, is here.
Each moment ticked, exactly, off.
Dead time, never quickening
To the beat of a racing heart.

Each moment ticked exactly off.
Each gives the measure of the rest.
To the beat of a racing heart
Such constraint cannot be borne;

Each gives the measure of the rest
In substance only, not in time.
Such constraint cannot be borne:
Some leap while others murmur.

In substance, only not in time,
Hearts beat together ’gainst the clock.
Some leap while others murmur,
And all the time there is, is there.