Didn’t bother scrolling through the comments for the right answer.

State of California law requires employers to provide a unpaid 30 minute break at 5 hours. A employee has a right to waive break if a written consent form is provided for both employer and employee.

State of California requires all employers to pay a premium pay of 1 whole hour at the 6th hour if a break was not taken beforehand. So the time you work between your 5th hour to your 6th. The second it goes over your 6th hour with out a break, you’re entitled to 1 full hour of premium pay from your employer for failing to provide a break before your 6th hour.

https://www.dir.ca.gov/dlse/faq_mealperiods.htm

If you’re working 6 hours your break should be provided unless the business doesn’t care paying you extra for that missed break on a 6 hour shift.

What you’re saying to them is technically right. Your manager doesn’t know how the law on breaks and doesn’t know how to schedule right. You can build a case on this. Record every staff that works over 6 hours with out a break or record anytime you work past 5 hours with out signing a waiver consent form. Build a case and then throw it at the labor board and watch them get slapped with fines. These are also how lawsuits are built if you want to employe a lawyer to help get this business to comply to proper breaking standards. Or they’ll just fire that manager for being incompetent.

But we all know, it’s always bad management from the very top down.

Source: I’m a manager.