Packhan of sathporshi

Sathporshi Pachkhan in Jain practice usually means a vow to not eat or drink until the time of Sadh Porsi. In common Jain usage, Sadh Porsi is about 1.5 porsi after sunrise, roughly 4 hours 30 minutes after sunrise. ( jainknowledge.com)

A simple meaning is:

• “Aaj sadh porsi tak aahar-pani ka tyag.”
• After that fixed time, one may take food or water according to the vow taken. ( jainknowledge.com)

If you want, I can also give the full Jain pachkhan wording in simple Gujarati/Hindi style.