Hello,
In the state of New Jersey can you please tell me what the minimum
lunch time required by law is in New Jersey for both full & part time
employees. Is it based upon the hours they work per week?

Thanks

Unlike many states, New Jersey does not mandate a meal break, except
in the case of minors:

"Are breaks and lunches required by law? 

A. Mandatory break laws apply only to minors under the age of 18.
Company policy dictates break and lunch periods for anyone over the
age of 18. Minors under the age of 18 must be given a thirty (30)
minute meal period after five (5) consecutive hours of work. "

New Jersey Department of Labor: Wage and Hour Compliance FAQ's
http://www.state.nj.us/labor/lsse/lsgenfaq.html

Here you can see the meal period requirements for adults in all
states. Note that New Jersey is mentioned only in a footnote regarding
meal provisions for minors:

U.S. Department of Labor: Minimum Length of Meal Period Required Under
State Law For Adult Employees in Private Sector1/January 1, 2004
http://www.dol.gov/esa/programs/whd/state/meal.htm

Google Web Search: "new jersey" + "meal period" + "required"
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=%22new+jersey%22+%22meal+period%22+required

I hope this information is useful. If anything is unclear, or if a
link doesn't work for you, please request clarification; I'll be glad
to offer further assistance before you rate my answer.

Best regards,
pinkfreud