Why California Daily Overtime Exists — and Why Most Workers Never Collect It

Federal overtime law requires 1.5x pay after 40 hours in a workweek. Most workers know this. Far fewer know that California requires 1.5x pay after 8 hours in a single workday — regardless of total weekly hours.

The Rule Employers Count On You Not Knowing

A worker scheduled for four 10-hour days has worked exactly 40 hours — no federal overtime triggered. But under California Labor Code Section 510, that same worker has accumulated 8 hours of daily overtime premium. Every week. The employer who only runs federal overtime calculations is automatically underpaying every California employee on that schedule.

The daily overtime rule applies to most California employees regardless of industry. The exceptions are narrow — certain alternative workweek schedules require employee vote and DLSE filing. Most employers who skip daily overtime don’t have a valid exemption. They just haven’t been challenged.

Educational use only. Not legal advice. Justice Foundation.