Hours Calculator
Hours between two times, with optional break deduction.
Last updated: January 2025 · Built for the 2024–25 financial year
Inputs
Results
Net hours worked
8h 0m
Gross hours
8h 30m
Decimal hours
8.00
Results are estimates only. For financial advice, consult a licensed adviser.
Overview
Add up shift hours and overtime
Timesheet maths trips up many — a shift from 9:00 am to 5:30 pm with a 30-minute unpaid break is 8.0 paid hours, not 8.5. Decimal hours are what payroll uses, so 7 h 45 min = 7.75 hours.
Australian awards specify ordinary hours (often 38/week), with overtime at 1.5× for the first 2-3 hours and 2× thereafter. Sundays and public holidays attract penalty rates of 2-2.5×.
Formula
Decimal hours
hours = (end − start) − unpaid_breaks decimal = hours + minutes/60
Pro tips
- •Round to the nearest 6 minutes (0.1 h) for fair payroll.
- •Always log breaks separately — Fair Work audits commonly flag this.
- •Overtime is calculated against ordinary hours, not gross.