Common Flexible Schedule Overtime Scenarios
Overtime calculation for common flexible work schedules
| Schedule | Hours/Week | Overtime Under Federal Law | Notes |
|---|---|---|---|
| 4×10 workweek (Tue–Fri) | 40 hours | No OT (exactly 40/week) | Mon day off; 10 hrs/day, no daily OT federally |
| 9/80 schedule (alternating 9 and 8-hr days) | Alternates 80 hrs over 2 weeks | 0 or 0 (if exactly 80/14 days) | Must check each workweek individually |
| 3×12 shifts (Tue–Thu) | 36 hours | No OT | 4-day workweek with 3 long shifts; common in healthcare |
| 4×12 + 1 partial day | 50 hours | 10 OT hours | Any week over 40 triggers OT |
| Rotating shifts (variable hours) | Varies | Based on each week’s total | Calculate each workweek independently |
The 9/80 Schedule: A Common Overtime Trap
The 9/80 compressed schedule (9 hours/day for 8 days + 1 day off every 2 weeks) averages 40 hours/week. But overtime is calculated per workweek, not per two-week period. If the employer’s workweek is structured correctly, Week 1 = 44 hours (4 × 9-hr days + Friday off midweek) and Week 2 = 36 hours — 4 OT hours in Week 1 plus none in Week 2. The workweek definition determines whether 9/80 creates overtime.
Employers using 9/80 schedules typically define the workweek to begin at noon on Friday (or some mid-workday time on the alternating day off). This way, the 80-hour period is neatly divided into two 40-hour workweeks, and no overtime accrues. If your employer doesn’t carefully define the workweek for a 9/80 schedule, you may be owed overtime every other week.
Split Shifts and Overtime
A split shift is when an employee’s work day is split into two separate periods (e.g., 7am–11am and 4pm–8pm). All hours worked in a split shift within the same workday count toward overtime. Total hours across all split segments count toward the 40-hour weekly total. There’s no legal requirement for extra pay for the 'gap' between split shift segments beyond regular and overtime rates.
Calculate Your Flexible Schedule Overtime
Enter your actual weekly hours (regardless of schedule structure) to find your correct overtime pay.