Answer

In Jain Dharma, the 6th era (Dusham-Dusham Kāḷ) will begin after the completion of the present 5th era (Dusham Kāḷ).

According to Jain tradition, the 5th era lasts 21,000 years, beginning after the nirvāṇa of Bhagwan Mahavir.

So, the 6th era will begin 21,000 years after Bhagwan Mahavir’s nirvāṇa.

Explanation

Jain time-cycle has six eras in the descending half-cycle, called Avasarpiṇī:

• 1st: Suṣam-Suṣam
• 2nd: Suṣam
• 3rd: Suṣam-Duṣam
• 4th: Duṣam-Suṣam
• 5th: Duṣam
• 6th: Duṣam-Duṣam

We are currently in the 5th era, an age of sorrow mixed with some remaining possibility of religion and spiritual practice.

The 6th era will be a period of extreme suffering, where right religious practice becomes extremely difficult.

Takeaway

The exact modern calendar year is calculated differently depending on the calendar system used, but traditionally the 6th era begins after the 21,000-year duration of the 5th era is complete.