Answer

Yes, generally you may take Upwas Pachkhan at 3 pm if you have already followed the rules of Upwas from morning with proper intention.

In Jain practice, Pachkhan is the formal vow or resolve. If you missed taking it in the morning but have genuinely observed Upwas rules since morning, you can take Pachkhan later with humility.

Important Point

When taking Pachkhan at 3 pm, your vow should be understood from the time you formally take it. However, spiritually, your discipline since morning is still valuable because you observed restraint with sincere bhaav.

What You Can Do

• Take Pachkhan respectfully from a Jain sadhu/sadhvi if available.
• If not available, take it in front of Bhagwan with sincere bhaav, according to your tradition.
• Clearly maintain all Upwas rules until the proper time of Parna.

Takeaway

The best practice is to take Pachkhan in the morning, but if you forgot and have followed the rules sincerely, taking it at 3 pm is acceptable with proper repentance and devotion.