In Jainism, the worship of God (poojan) typically refers to the veneration of the Tirthankaras and other revered beings, not a creator god. There is flexibility in the timing, but traditional guidelines are as follows:

Best Time for Poojan:

• Morning: The most auspicious time for performing poojan is early in the morning, after completing daily purification rituals (such as bathing and Samayik). This is considered a peaceful and sattvic (pure) time.
• Before Meals: Poojan is ideally performed before taking food, as eating is believed to create bodily impurities.
• Temple Timings: If visiting a Jain temple, poojan is usually performed during temple open hours, which are generally from sunrise until noon, and sometimes in the evening.

Restrictions:

• Avoid performing poojan during the night or after sunset, as per traditional Jain practice.
• Poojan should not be performed during menstruation or when one is unclean, according to some sects’ customs.

Special Days:

• Poojan is especially encouraged on Jain festivals such as Paryushan, Mahavir Jayanti, and during Ashtanika.

Summary: The ideal time for Jain poojan is in the early morning, after personal purification and before eating, preferably at a temple or home shrine, and not after sunset.

If you need specific poojan timings for a particular Jain sect or festival, please mention it.