Answer

I can help with Porshi / Pratyakhyan timing in Mumbai, but I need the sunrise time for Mumbai today to calculate it accurately.

In Jain practice, Porshi is generally calculated as one-fourth of the daytime after sunrise.

How to Calculate

• Find today’s sunrise and sunset time for Mumbai.
• Calculate total daytime duration: sunset − sunrise.
• Divide it by 4.
• Add that duration to sunrise.

That gives the Porshi time.

Note

For exact daily Pachakkhan/Porshi timings, Jains usually follow their local Jain Panchang or ask their Upadhyayji / Maharaj Saheb, because timings may vary slightly by tradition and local calculation method.