In Jain dharma, each half of the time‑cycle (Utsarpini and Avasarpini) has 6 ārās (kāls). So:

• Total aras in one full time cycle = 12

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6 Aras of Avasarpini (descending half)

1. Sukhama‑sukhama – Uttam sukh kāl (utmost happiness)

- Duration: 4 kroḍ‑kroḍ sāgaropam years (very, very vast)

1. Sukhama – Sukh kāl (happiness)

- Duration: 3 kroḍ‑kroḍ sāgaropam years

1. Sukhama‑dukhama – Sukh‑dukh kāl (more happiness, some sorrow)

- Duration: 2 kroḍ‑kroḍ sāgaropam years

1. Dukhama‑sukhama – Dukh‑sukh kāl (more sorrow, some happiness)

- Duration: 1 kroḍ‑kroḍ sāgaropam years

1. Dukhama – Dukh kāl (mostly sorrow)

- Duration: 21,000 human years

1. Dukhama‑dukhama – Ati‑dukh kāl (utmost sorrow)

- Duration: 21,000 human years