Jains do not have one universal “winter holiday” like some other traditions do.

Major Jain observances are usually:

• Paryushan / Das Lakshana — typically in late monsoon/early autumn
• Mahavir Jayanti — usually in spring
• Diwali — very important for Jains, as it marks Lord Mahavir’s moksha; it falls in autumn, not winter

In some Jain communities, there may be local or regional observances in winter, but there is no single standard Jain winter holiday.