Answer

After doing Upwas, you should drink water in the morning only after doing Parna at the proper Parna time.

The exact Parna time depends on:

• Your city/location
• Sunrise time
• The Jain calendar date/tithi
• Your tradition and rule followed during Upwas

So I cannot give an exact time without your location.

Explanation

In Jain practice, after Upwas, one normally breaks the fast during the prescribed morning Parna period. Water should not be taken before Parna if the Upwas was observed with the vow of complete fasting.

Please check today’s Parna time from:

• Your local Jain temple
• Your Guru Maharaj / Sadharmik guide
• Your local Jain Panchang

Takeaway

If you tell me your city and country, I can guide you more specifically on how to determine the proper morning Parna time, but for the exact religious time, the local Jain Panchang or temple should be followed.