In Jainism, Chovihar (also spelled Chauvihar, Choviyar) refers to the practice of not consuming any food or water after sunset or a specific time in the evening, typically observed by lay followers (Shravaks and Shravikas). The exact timing is based on the local sunset time or a set time after which eating and drinking is stopped, often aligned with the end of the day (Sandhya).

For New Jersey, you should observe Chovihar starting at sunset, which today can be found by checking a reliable local calendar or a Jain Panchang (Jain religious calendar). Generally, Jains in the United States may also follow a standardized local Jain calendar provided by their temple or community.

How to determine Chovihar time in New Jersey:

1. Find today's sunset time for your specific city in New Jersey (for example, using a weather website or calendar).
2. Chovihar should begin at or a few minutes before the listed sunset time.

Example: If today's sunset in New Jersey is at 8:31 PM, Chovihar should begin at 8:31 PM or a few minutes before.

For the most accurate and religiously appropriate timing, consult your local Jain temple, community, or a Jain Panchang specific to your area.

If you need a precise time for today, please refer to your local Jain temple or online Jain Panchang, as I am unable to provide real-time sunset data.