For Mumbai today (1 March 2026):

• Sunrise ≈ 6:57 am
• Sadh Porsi (Sath Paursi) = 1.5 Porsi = 4 hours 30 minutes after sunrise

So, Sadh Porsi time today in Mumbai is around 11:25–11:30 am (approximately 11:27 am).

For safety, take your pachchakkhan a little before this time, and follow the exact timing as per your local derasar / Jain panchang.

You can read a simple explanation of Porsi and Sadh Porsi here