In Jain Dharma, “porsi” (पोरसी) is a time unit, not a fixed clock time like 9:00 am.

Basic idea:

• 1 घड़ी (ghadī) = 24 minutes
• 1 पोरसी (porsi) = 2 घड़ी = 48 minutes
• From sunrise, the day is divided into such 48‑minute blocks (porsis).
• Many Jain rules for भोजन (eating), उपवास, प्रोषध (posadh), आदि are given as “before/after X porsi from sunrise/sunset.”

For Delhi specifically:

• The exact clock time of any porsi in Delhi changes every day because sunrise and sunset times change daily.
• To know “porsi time in Delhi” for a particular day, you need:

1. That day’s sunrise (and/or sunset) time in Delhi 2. Then count 48‑minute blocks from there. - 1st porsi: sunrise to +48 min - 2nd porsi: +48 to +96 min, and so on.

For practical use, people usually:

• Follow a Jain panchang / calendar made for Delhi, or
• Take the daily porsi timings announced in their local Derasar / Jain temple.

If you tell your exact date and whether you want porsi from sunrise or sunset, you can calculate it by adding/subtracting 48‑minute blocks from that time.