“Jeth Vad 3” means a date in the Jain lunar calendar.

• Jeth = the month of Jyeshtha
• Vad = the dark/waning half of the lunar month, when the moon decreases
• 3 = the third lunar day of that waning half

So Jeth Vad 3 means:

> The 3rd day after the full moon, in the month of Jeth/Jyeshtha

In simple words, it is a traditional tithi-based date, not a Gregorian date like 3rd June or 15th June.

In Jain tradition, many festivals, fasting days, and religious observances are marked by tithi rather than the English calendar.