--- title: "New Zealand work hours calculator for timesheets | AumnI tools" description: "Total weekly hours from clock times and breaks and price them in dollars. New Zealand sets no overtime premium, so enter any rate from your employment agreement." url: https://aumnitools.com/nz/tool/work-hours-calculator category: "Lifestyle" country: "New Zealand" updated: 2026-11-08 --- # Work Hours Calculator In New Zealand, employment agreements set weekly hours, normally no more than 40, and the law does not require an overtime premium. This calculator adds up a week of start, finish and break times, pays every hour at your base rate in dollars, and lets you add an agreed multiplier if your agreement has one. ## New Zealand rules and figures - Employment agreements in New Zealand must set weekly hours of no more than 40 unless the employer and employee agree otherwise. - New Zealand sets no legal overtime premium, so any overtime rate is whatever the employment agreement says. - Hours of work must be agreed in a written employment agreement. - Work on a public holiday carries a legal premium of time and a half. Sources: [Employment New Zealand: Hours of work](https://www.employment.govt.nz/pay-and-hours/hours-and-breaks/hours-of-work) (checked 2026-11-08); [Employment New Zealand: Types of pay](https://www.employment.govt.nz/pay-and-hours/pay-and-wages/types-of-pay) (checked 2026-11-08) ## How the Work Hours Calculator works Each day's net time is the finish less the start less the unpaid break. A finish earlier than the start is treated as the next day. The overtime rule opens on no premium, which is how the law leaves it. Formula: `net minutes = (out − in, +24 h if out < in) − break; pay = regular × rate + overtime × rate × agreed multiplier` - The sheet opens with weekdays at 09:00 to 17:30 and a 30-minute break, 40 hours in total, which lines up with the usual ceiling for agreed weekly hours. - There is no legal overtime premium to default to, so the rule starts at No overtime premium. Pick a weekly rule to apply a multiplier that your own agreement sets. - The note on the pay tab mentions the legal premium of time and a half for work on a public holiday. The tool has no public-holiday setting, so apply that by hand. - The target opens at 40 hours a week, and the plus or minus figure on the week tab compares your total with it. - The currency symbol starts as $, and your timesheet and edits stay in your browser. ## How to use the Work Hours Calculator 1. **Record each day.** Type a start, a finish and an unpaid break for each day you worked. 2. **Enter your hourly rate.** On the pay tab enter your hourly rate in dollars. Hours are paid at that rate while the rule is set to no premium. 3. **Apply an agreed overtime rate.** If your agreement pays more after a number of hours, pick a weekly rule, set the threshold and type the multiplier. 4. **Compare with agreed hours.** Set the target to the weekly hours in your agreement and read how far the week is over or under. 5. **Check a one-off shift.** Use the shift tab for a single night or odd shift. ## Example: A 45-hour week at $30 an hour Take five days of 08:00 to 17:30 with half an hour unpaid. That leaves 9 hours a day and 45 for the week. Under the legal default of no premium, gross pay is 45 × $30 = $1,350.00. Now imagine the agreement promises time and a half beyond 40 hours. Select the weekly rule, enter 40 and 1.5, and the result is $1,200.00 for the first 40 hours and $225.00 for the other 5, so $1,425.00 in all. ## When to use the Work Hours Calculator - **Checking a pay slip.** Enter the week as worked and compare the regular and extra hours with what you were paid. - **Costing agreed overtime.** Choose a weekly rule and the multiplier from your agreement. - **Shifts that cross midnight.** Type real start and finish times; the tool adds the day change. - **Planning against 40 hours.** Use the week total against the target to see whether a roster fits. ## What the Work Hours Calculator does not do - Pay is gross, before PAYE, ACC and KiwiSaver deductions. - Public-holiday time and a half, alternative holidays and leave are not applied. - The weekly rule is a single threshold and multiplier, so tiered agreements are approximated. - The tool cannot read your employment agreement, which decides any overtime rate. - The single shift tab pays net hours at the base rate with no overtime. - Rounding rules set by an employer are not modelled. ## When something else is a better fit - **When you need take-home pay after PAYE and KiwiSaver**, use the [Payroll Calculator](https://aumnitools.com/tool/payroll-calculator.md). - **When you want to total a list of durations**, use the [Time Duration Calculator](https://aumnitools.com/tool/time-duration-calculator.md). - **When your agreement states its own overtime terms**, use the written employment agreement. ## Questions about the Work Hours Calculator ### Do employers have to pay overtime in New Zealand? There is no legal overtime premium. Any extra rate comes from the employment agreement, which is why this tool starts with none. ### How many hours can an agreement set? Weekly hours of no more than 40, unless the employer and employee agree otherwise, and they must be in a written agreement. ### How do I model a public holiday at time and a half? The tool has no holiday setting. Enter that day's hours separately and apply the 1.5 multiplier by hand to the hourly rate. ### What if my shift ends after midnight? Enter the real times, like 22:00 and 06:00. When the finish comes before the start, the tool treats it as the following day, so you get 8 hours before the break. ### Is my data kept online? No. The timesheet is saved in this browser on your device. Export a CSV if you need a copy. ## Related tools - [Payroll Calculator](https://aumnitools.com/tool/payroll-calculator.md): Estimates US net pay per paycheck and employer cost from salary or hourly pay for 2026 - [Time Duration Calculator](https://aumnitools.com/tool/time-duration-calculator.md): Gaps between dates and times, working days, date shifts and hh:mm duration totals - [Budget Planner](https://aumnitools.com/tool/budget-planner.md): Plans monthly income and expenses by category, with a health score and debt payoff ## About this page Runs in your browser: what you enter is processed on this device and is not uploaded. Last checked against the tool's code on 2026-11-08. Interactive version: https://aumnitools.com/nz/tool/work-hours-calculator