Answer

Generally, 108 Ekasana can be completed in about 3.5 months, if one does one Ekasana per day.

That means:

• 1 Ekasana daily → 108 days
• 108 days is approximately 3 months and 18 days

Explanation

In Jain practice, Ekasana means eating only once in a day, in one sitting, according to proper religious discipline.

So if a person takes a vow to complete 108 Ekasana, the time depends on how frequently they do it:

• Daily: completed in 108 days
• Alternate days: completed in about 216 days
• Only on certain tithi/days: it may take longer

Takeaway

The usual period is 108 days, if done continuously one per day. However, one should follow the vow according to personal capacity, health, and proper guidance from elders or a Jain guru.