Work Hours Calculator
🇳🇿 New Zealand version
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.
Use Work Hours Calculator online
Work Hours Calculator
Turn a week of clock-in and clock-out times into hours worked, overtime and gross pay. Overnight shifts and unpaid breaks are handled properly, and your timesheet stays on this device.
Hours for the week
| Day | In | Out | Break (min) | Worked | Include |
|---|---|---|---|---|---|
| Monday | 8h 00m | ||||
| Tuesday | 8h 00m | ||||
| Wednesday | 8h 00m | ||||
| Thursday | 8h 00m | ||||
| Friday | 8h 00m | ||||
| Saturday | 0h 00m | ||||
| Sunday | 0h 00m |
Week total
Hours by day
The dashed line marks 8 hours. Breaks are stacked on top so the bar height is the full time on site.
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 (checked 2026-11-08); Employment New Zealand: 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.
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
- Record each day. Type a start, a finish and an unpaid break for each day you worked.
- 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.
- 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.
- Compare with agreed hours. Set the target to the weekly hours in your agreement and read how far the week is over or under.
- 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.
- When you want to total a list of durations, use the Time Duration Calculator.
- 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.