"Each morning I pass on my way to work"

Each morning I pass on my way to work
A clock in a tower
And I look towards it with anxious eyes
To make sure of the hour.
But the sun gets up at the back of the tower
With a flare and a blaze
Hiding the time and the tower from my sight
In a blissful haze.
"I am the marker of time" says the sun.
Taken unawares,
I believe for the nonce he is lord of the day
And am rid of my cares.