Overnight Shift Calculator
Calculate overnight work hours across midnight, including multiple paid and unpaid breaks and estimated pay.
Breaks
Add any paid or unpaid breaks taken during your shift.
What Is an Overnight Shift Calculator?
An Overnight Shift Calculator helps you calculate working hours when a shift starts on one day and finishes after midnight on the following day.
For example, if your shift starts at 8:00 PM and ends at 6:00 AM, the calculator treats the end time as being on the next day.
The ShiftCalco Overnight Shift Calculator can also handle multiple breaks, including both paid and unpaid breaks. It calculates your total shift time, actual working time, paid hours, decimal hours and estimated pay.
How to Use the Overnight Shift Calculator
Enter your overnight shift details into the calculator above and follow these steps:
- Enter the time your shift starts.
- Enter the time your shift finishes the following day.
- Add your first break duration.
- Select whether the break is paid or unpaid.
- Add additional breaks if needed.
- Enter your hourly rate if you want to estimate your pay.
- Click Calculate Overnight Shift.
The calculator will show your total shift length, total break time, actual working hours, unpaid break time, paid hours, decimal hours and estimated earnings.
Overnight Shift Calculation Example
Suppose you start work at 8:00 PM and finish at 6:00 AM the next morning.
Your total overnight shift is 10 hours.
During the shift, you take:
- 30-minute break: Unpaid
- 15-minute break: Paid
Your total break time is 45 minutes.
After removing both breaks, your actual working time is 9 hours 15 minutes.
Because only the 30-minute unpaid break is deducted from paid time, your paid hours are 9 hours 30 minutes.
In decimal format, your paid time is 9.50 hours.
How Are Overnight Shift Hours Calculated?
An overnight shift crosses midnight, so the end time belongs to the following calendar day.
For example:
- Shift Start: 10:00 PM
- Shift End: 6:00 AM
From 10:00 PM until midnight is 2 hours, and from midnight until 6:00 AM is another 6 hours.
Therefore:
2 hours + 6 hours = 8 hours
ShiftCalco performs this calculation automatically, so you do not need to manually split the shift before and after midnight.
How Do Multiple Breaks Affect an Overnight Shift?
Some overnight workers take more than one break during a shift. For example, you may take a meal break and one or more shorter rest breaks.
The Overnight Shift Calculator allows you to add multiple breaks and mark each one as either paid or unpaid.
All entered breaks are removed when calculating actual working time. Only unpaid breaks are deducted when calculating paid hours.
You can also use the Shift Calculator With Break when your main goal is to calculate a shift with multiple paid and unpaid breaks.
Paid Breaks vs Unpaid Breaks
A paid break remains part of your paid shift time, while an unpaid break is deducted from the hours you are paid for.
For example, imagine your overnight shift is 10 hours long and you take:
- 30 minutes: Unpaid
- 15 minutes: Paid
Your total break time is 45 minutes, so your actual working time is 9 hours 15 minutes.
However, only the 30-minute unpaid break reduces your paid hours. Your paid time is therefore 9 hours 30 minutes.
Actual Working Time vs Paid Hours
Actual working time and paid hours can be different when your shift includes paid breaks.
Actual working time is the amount of time remaining after all entered breaks are removed from the total shift.
Paid hours are calculated after unpaid breaks are deducted. Paid breaks remain included in paid hours.
If all your breaks are unpaid, your actual working time and paid hours will normally be the same.
If some of your breaks are paid, your paid hours may be higher than your actual working time.
Overnight Shift Decimal Hours
Decimal hours convert hours and minutes into a decimal number. This format can be useful for timesheets, payroll calculations and estimating hourly earnings.
| Hours and Minutes | Decimal Hours |
|---|---|
| 7 hours 15 minutes | 7.25 |
| 7 hours 30 minutes | 7.50 |
| 7 hours 45 minutes | 7.75 |
| 8 hours 30 minutes | 8.50 |
| 9 hours 15 minutes | 9.25 |
| 9 hours 30 minutes | 9.50 |
For example, 30 minutes equals 0.50 hours because it is half of one hour.
How to Calculate Overnight Shift Pay
If you are paid by the hour, you can estimate your overnight shift pay using:
Paid Hours × Hourly Rate = Estimated Shift Pay
For example:
- Paid Hours: 9.50
- Hourly Rate: €16.00
The estimated pay would be:
9.50 × €16.00 = €152.00
Enter your hourly rate into the calculator above to calculate your estimated pay automatically.
For more detailed shift earnings calculations involving premiums or bonuses, use the Shift Pay Calculator .
Does the Calculator Include Night Shift Premiums?
The Overnight Shift Calculator uses the hourly rate you enter to estimate your standard shift pay.
It does not automatically add night shift premiums, overtime rates, weekend rates, public holiday rates or other additional payments.
If your employer pays a different hourly rate for overnight work, you can enter that rate in the hourly rate field to estimate your earnings.
If you need to calculate overtime separately, use the Overtime Calculator .
Night Shift Calculator vs Overnight Shift Calculator
Both calculators can be used for work that continues past midnight, but they are designed for slightly different calculations.
The Overnight Shift Calculator is designed for detailed overnight calculations where you may have multiple paid and unpaid breaks.
The Night Shift Calculator provides a simpler way to calculate night shift duration, one unpaid break, paid hours and estimated pay.
Who Can Use an Overnight Shift Calculator?
Overnight shifts are common in many industries. This calculator can be useful for employees, shift workers, supervisors, managers and anyone who needs to calculate hours worked across midnight.
It may be particularly useful for people working in:
- Hotels and hospitality
- Security
- Healthcare and hospitals
- Warehouses
- Factories and manufacturing
- Transport and logistics
- Restaurants and bars
- Emergency services
- Cleaning services
- Customer support
- Retail
- Care services
Frequently Asked Questions
How many hours is an 8 PM to 6 AM shift?
A shift from 8:00 PM until 6:00 AM the following morning is 10 hours before any unpaid breaks are deducted.
How many hours is 10 PM to 6 AM?
From 10:00 PM until 6:00 AM the following day is 8 hours.
How many hours is 11 PM to 7 AM?
An overnight shift from 11:00 PM until 7:00 AM is 8 hours before breaks.
Can I add more than one break?
Yes. The ShiftCalco Overnight Shift Calculator allows you to add multiple breaks during the same shift and select whether each break is paid or unpaid.
Are paid breaks deducted from paid hours?
No. Paid breaks are removed when calculating actual working time but remain included in your calculated paid hours.
Are unpaid breaks deducted from paid hours?
Yes. Unpaid breaks are deducted when calculating your paid hours.
Can I calculate overnight shift pay?
Yes. Enter your hourly rate and the calculator will multiply it by your calculated paid hours to provide an estimated shift pay amount.
Can the calculator handle a shift that crosses midnight?
Yes. The calculator is specifically designed for shifts that start before midnight and finish on the following day.
Does the Overnight Shift Calculator calculate overtime?
No. This calculator focuses on overnight shift duration, breaks and standard estimated hourly pay. Use the Overtime Calculator to calculate overtime hours and overtime pay.
What is the difference between the Night Shift Calculator and Overnight Shift Calculator?
The Overnight Shift Calculator supports multiple paid and unpaid breaks, while the Night Shift Calculator is designed for a simpler night shift calculation with an unpaid break.
Is the Overnight Shift Calculator free?
Yes. The ShiftCalco Overnight Shift Calculator is free to use and does not require registration.
Related Work and Shift Calculators
You may also find these ShiftCalco calculators useful:
- Night Shift Calculator - calculate night shift hours, an unpaid break and estimated pay.
- Shift Calculator With Break - calculate working and paid hours with multiple paid and unpaid breaks.
- Shift Hours Calculator - calculate total shift duration, working hours and paid hours.
- Work Hours Calculator - calculate multiple clock-in and clock-out work periods.
- Weekly Hours Calculator - calculate total working hours from Monday through Sunday.
- Break Time Calculator - calculate break duration and return-to-work time.
- Shift Pay Calculator - calculate estimated earnings, shift premiums and bonuses.
- Overtime Calculator - calculate regular hours, overtime hours and estimated overtime pay.
- Hourly to Salary Calculator - convert hourly wages into estimated weekly, monthly and annual earnings.
About the Overnight Shift Calculation
ShiftCalco calculates overnight shift hours using the start time, end time, breaks, break types and hourly rate you enter. When the end time is after midnight, it is treated as occurring on the following day.
The results are provided as general estimates and should not be treated as an official payroll statement.
Actual paid hours or earnings may vary depending on your employment agreement, applicable workplace rules, overtime policies, paid break arrangements, night premiums, taxes and other deductions.