Answer

In Jain upvaas, the time to start drinking water depends on the type of upvaas you are observing:

• Chauvihar Upvaas: No food and no water after sunset on the previous day until the upvaas is completed.
• Tivihar Upvaas: No food, but boiled water may be taken during the permitted daytime period.

Usually, in Tivihar Upvaas, boiled water is taken only after sunrise and before sunset, according to your tradition’s allowed time.

Explanation

In Jain practice, water during fasting is generally taken only if it is:

• Boiled
• Cooled naturally
• Taken only within the proper daytime limit

Many Jain families follow the rule that boiled water is used only for a limited number of hours after boiling, depending on local tradition and guidance.

Spiritual Understanding

The purpose of upvaas is not only to avoid food, but to reduce attachment to the body, practice self-control, and increase spiritual focus through samayik, pratikraman, swadhyay, and devotion.

Takeaway

If your upvaas is Chauvihar, do not drink water. If it is Tivihar, you may drink boiled water only during the permitted daytime period. For exact timing, follow your family tradition or ask your Guru Maharaj/Sadhviji.