What is a metaphor for prolonged?

Depending on what effect you're going for or the context:

Life is prolonged: Life was an eternal clock with each second ticking slower than the beating of my heart.

Death is prolonged: Bathed in an endless white light I relived my entire life, death was a still ocean, and it seemed I was forever lost at sea.

School is prolonged: A tortoise walked away with the school clock and the day would never come to an end.