What this calculator does
Given a start time, end time and break minutes, it computes:
- Total hours — wall-clock duration of the shift.
- Paid hours — total minus unpaid break.
- Overtime hours — paid hours beyond 8.
Common shift patterns
| Shift | Hours | Notes |
|---|---|---|
| General (9–6) | 9 hrs (8 paid) | 1 hr lunch deducted |
| Morning (6–14) | 8 hrs | Manufacturing / BPO |
| Evening (14–22) | 8 hrs | Manufacturing / BPO |
| Night (22–06) | 8 hrs | Often 1.25× pay differential |
| 12-hour rotational | 12 hrs (11 paid) | Healthcare / process plants |