How many hours can an empoyee work before having to take a lunch break?
Employee wants to skip lunch to get out of work early.
Generally, no employer shall employ a non-exempt employee for a work period of more than 5 hours without a duty-free meal period of not less than 30 minutes. Additionally, every employer shall authorize and permit all non-exempt employees to take rest periods which insofar as practicable shall be in the middle of each work period. The rest period time shall be based on the total hours worked daily at the rate of 10 minutes net rest time per 4 hours or major fraction thereof.
As long as you offer a lunch break you cannot force the employee to take it. If they choose to work through that's their choice. If they choose to do so do and want to leave early, then it is up to you as to whether or not you want to allow it.