8-Hour Shift Calculator
Quickly determine end-of-day times and total weekly hours when you account for breaks and possible overtime.
Include unpaid meal breaks or rest periods.
Shift Summary
Scheduled end time
16:30
Includes 30 min break & 0 hr overtime
Paid time
8 hrs/day
40 hrs/week
How to Use This Calculator
Set your start time
Enter the clock-in time in 24-hour format. The calculator handles early or late shifts.
Add breaks and overtime
Include unpaid breaks in minutes and specify any regularly scheduled overtime. The end time reflects these adjustments.
Plan weekly schedules
Update days per week to see total paid hours. Use the results to compare with full-time or overtime thresholds.
Formula
End Time = Start + 480 min + Break + (Overtime × 60)
Paid Hours = (480 + Overtime × 60) ÷ 60
Weekly Hours = Paid Hours × Working Days
Example: Start 08:00, 30 min break, 1 hr overtime → End at 17:30 and log 9 paid hours.
Shift Planning Tips
Understanding the math behind your shift helps prevent accidental overtime and keeps teams coordinated.
- Schedule breaks at consistent times so teams stay aligned.
- Communicate end times in both local time and duration for remote teams.
- Track cumulative weekly hours to avoid overtime surprises.
- Use scheduler apps or calendar reminders aligned with this calculator for accuracy.
Frequently Asked Questions
Does this include paid breaks?
Add break time only if it extends your clock-out time. If breaks are paid but do not extend the shift, set break minutes to zero.
Can I plan split shifts?
For split shifts, run the calculator twice (morning and evening) and add the paid hours together.
What about overnight shifts?
Times wrap around midnight automatically. An end time of 02:00 means you finish the following day at 2 a.m.
How do I track lunch vs short breaks?
Sum the total unpaid break minutes (e.g., 30 min lunch + 2×10 min rest = 50 min) and enter that number in the break field.