In Jainism, a Sagaropam (also called Sagarasama or Sagaropama) is an extremely large unit of time used to describe vast durations in Jain cosmology.

One Sagaropam is defined as the time it would take to empty a well that is one yojan deep and one yojan wide (a yojan is a traditional measure of distance, roughly 8-9 miles or about 13-15 kilometers), if one removes just a single drop of water every hundred years.

In numerical terms, while the exact calculation can vary depending on interpretations of the size of a yojan and a "drop," Jain texts often estimate one Sagaropam to be approximately 10^15 years (one quadrillion years) or even more. The key idea is that it's an unimaginably long period, used to convey the vastness of time in Jain cosmology.