In Jainism, chasani refers to sweet syrup or liquid sweets that are sometimes partaken as a form of food. During chaumasa (the four-month monsoon period), Jains observe stricter dietary restrictions to avoid harm to micro-organisms that multiply in the wet season.

Regarding the "kal" (duration/time limit) for consuming chasani or liquid sweets during chaumasa:

• According to Jain dietary rules, especially those followed by stricter sects like Shwetambar Murtipujak and Sthanakvasi, chasani or liquid sweets should be consumed within a short period after preparation, generally within 1-2 hours. This is to ensure that the food is fresh and to minimize the possibility of new life forms developing in it, which aligns with the Jain principle of ahimsa (non-violence).

• In many Jain traditions, during chaumasa, the time limit (kal) for consuming any wet or liquid food, including chasani, is even stricter. It is usually one prahar (approximately 3 hours) from the time of preparation. Some communities restrict this further to 48 minutes (one ghadi) or 1 hour, especially for items like chasani, pani (water), and other liquids.

• After this period, consumption is avoided to prevent the ingestion of new life forms (nigod or micro-organisms) that may arise in liquid or sweet substances.

Summary: Chasani or liquid sweets should be consumed within 1 prahar (about 3 hours) of preparation, or as per stricter traditions, within 48 minutes to 1 hour, especially during chaumasa. After this period, it should not be consumed.

These practices may vary between Jain sects and communities, so it is best to consult your guru or local Jain sangh for specifics.