Answer

In Jain practice, “dusre kaal ka paani” usually means water prepared for the second kaal of the day.

A practical example:

• If your first kaal is from morning until around midday, then
• dusre kaal ka paani should be boiled before the second kaal begins, commonly around midday / early afternoon, depending on your local tradition and daily schedule.

For example, if the second kaal is considered to begin around 12:00 PM, you may boil the water before 12:00 PM so it is ready for use in the second kaal.

Explanation

In Jain Dharma, boiled water is used with care because boiling helps reduce harm to living beings in water. The timing of water usage can vary by:

• Gachchh / sampraday tradition
• Local practice
• Sunrise and sunset timing
• Whether one is following household practice or stricter tapasya rules

So the safest guidance is:

• Boil the water before the kaal in which you will drink it.
• Do not boil water after sunset.
• Follow the timing taught by your guru, upashray, or family tradition.

Takeaway

For dusre kaal ka paani, boil it before the second kaal starts. If your tradition follows the second kaal from around noon, then boil it before noon and use it during that second kaal.