"Measuring a Day"

How does one measure a day?

In hours, and seconds and minutes,

You know, the conventional way?

What about the sun or moon?

As they pass through the heavens

To say whether its morning, evening or noon?

How does one measure a day?

Perhaps in jobs and deeds done

Or how long we work and play.

Is it the ticking of a hand

That causes time to pass

Or maybe the falling grains of sand?

How does one measure a day?

As time goes flying by

No one can really say.