Overtime is calculated automatically: • **Default**: Hours over 8 per day are overtime • **System calculates**: Regular vs OT split when you enter total hours • **Manual override**: Click the OT field to adjust Example: Enter 10 hours → Regular: 8, OT: 2. Cost = (8 × regular rate) + (2 × OT rate). The system tracks whether OT was system-calculated or manually adjusted for audit purposes.