This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Jain cosmology treats time itself as beginningless and endless, a wheel of alternating ascending and descending halves with no first turn and no final one, which sets it apart from the linear frameworks most other world age systems assume, a single golden beginning followed by decline toward a single present crisis. Because there is no starting point to count forward from, the tradition does not measure its ages in years the way the classical Hindu yugas or Hesiod's Greek ages do. Instead the unit is the sagaropama, literally an ocean-like measure, defined through a deliberately unworkable image: imagine a pit the width of a great continent and as deep as it is wide, packed tight with the fine hairs of a newborn lamb, and remove one hair every hundred years; a sagaropama is the time the pit takes to empty by that method, multiplied further by cosmic constants the texts specify but do not translate into anything a calendar could record. Dushama's own length is stated in exactly this kind of unit, which is why the atlas records how the age is dated rather than converting it, since no source in the tradition itself performs that conversion and inventing one would misstate a deliberately incalculable figure as a precise one. The effect for a reader coming from a linear time tradition is disorienting on purpose: Jain cosmology is not vague about its numbers, it is precise about numbers built to resist being pinned to an ordinary calendar at all.