Answer

For 9 September 2026, Mumbai, the suitable Chauviar / Chauvihar time is:

Before sunset — approximately by 6:30 PM IST

Explanation

In Jain practice, Chauvihar means taking no food or water after sunset. Since exact sunset can vary slightly by locality and panchang, it is best to complete food and water at least 10–15 minutes before sunset.

So for Mumbai on 9 September, keeping Chauvihar by around 6:30 PM is a safe practical time.

Takeaway

For proper observance, finish eating and drinking before 6:30 PM, and if you follow a specific Jain panchang or sangh timing, follow that local timing.