Answer

If you boil water at 6:30 am for biyasana, traditionally you may drink that boiled water until about sunset of the same day.

Explanation

In Jain practice, boiled water is used because boiling destroys many minute living beings in the water. After boiling, the water is considered suitable for a limited time.

For daytime use, water boiled after sunrise is generally used only until sunset. It should not be carried forward for use at night or the next day.

So, if boiled at 6:30 am, you can drink it during the day, up to sunset, according to common Jain household practice.

Takeaway

For biyasana, drink only properly boiled and cooled water within the accepted time limit, and avoid using it after sunset.