How do I calculate hours between two times?

Enter start and end time, add optional break, click Calculate. Get total hours, decimal hours, and pay estimate.

How are overnight shifts handled?

If end time is earlier than start time, the calculator adds 24 hours to the end time automatically.

How is the pay estimate calculated?

Pay = decimal hours × hourly rate. Taxes not included.

What does the 24-hour arc chart show?

The arc shows your worked period on a 24-hour clock ring. Midnight is at top. Cyan = worked, amber = break.

Date & Time

Calculate hours between any two times

Enter a start time and end time — with an optional break — to instantly see total hours worked, decimal hours, total minutes, and an optional pay estimate. Overnight shifts handled automatically.

Total hours & minutes Decimal hours Break deduction Pay estimate Overnight shifts 24-hour arc visual

Hours Calculator

Hours & minutes between two times

Start Time

End Time

End time is before start — will be treated as an overnight shift

Break Duration (optional)

minutes

Hourly Rate (optional — for pay estimate)

Time Worked

—

Decimal hours

—

Total minutes

—

Break deducted

—

Pay estimate

Shift on 24-Hour Clock

Worked

Break

Rest of day

—

Hours Calculator — Work Out Hours Between Two Times

This free hours calculator computes the exact difference between a start time and an end time, deducting any unpaid break, and presents the result in hours and minutes, total minutes, and decimal hours — the format used in most payroll and billing systems.

The calculator also handles overnight shifts: if the end time is earlier than the start time (e.g. starting at 22:00 and finishing at 06:30), it automatically adds 24 hours to the end time so the correct span is calculated. An optional hourly rate field produces an instant pay estimate.

What Are Decimal Hours?

Decimal hours express time as a single number where the fractional part represents minutes as a proportion of 60. They are used in payroll, billing software, and project management tools because they can be multiplied directly by an hourly rate.

Minutes	Decimal hours	Fraction
0 min	0.00	0/60
15 min	0.25	15/60 = ¼
20 min	0.33	20/60 = ⅓
30 min	0.50	30/60 = ½
45 min	0.75	45/60 = ¾
60 min	1.00	60/60 = 1 full hour

Formula: Decimal hours = (total minutes ÷ 60)

When to Use an Hours Calculator

Payroll & Timesheets Calculate total hours worked per shift or week to fill in payroll or submit a timesheet.

Billing by the Hour Freelancers and consultants can track billable hours and estimate invoices instantly.

Overnight & Night Shifts Correctly calculate shifts that cross midnight — the calculator detects and handles these automatically.

Study & Focus Sessions Track how long you study or concentrate on a task between two specific times.

Event Planning Work out the duration of a meeting, event, or appointment between its start and end times.

Childcare & Care Hours Track care hours for nannies, nurseries, or nursing shifts for accurate invoicing.

Frequently Asked Questions

Enter the start time and end time in the calculator, add any break duration in minutes, and click Calculate. The result shows total hours and minutes, total minutes, decimal hours, and an optional pay estimate if you enter a hourly rate.

If the end time is earlier than the start time (e.g. start 22:30, end 06:00), the calculator automatically assumes the shift crosses midnight and adds 24 hours to the end time. The result note will say "Overnight shift" so you know this logic was applied.

Decimal hours express the total time as a number with a decimal fraction. For example, 7 hours and 30 minutes = 7.5 decimal hours. To convert minutes to decimal: divide the minutes by 60. This format is used in payroll, billing, and project tracking systems.

Enter the break duration in minutes. The calculator subtracts this from the gross time difference to give net hours worked. For example, a 9-hour shift with a 30-minute break gives 8.5 net hours. If break time exceeds gross time, the calculator shows an error.

Enter your hourly rate in the optional pay field. Pay estimate = decimal hours × hourly rate. For example, 8.5 hours × £15/hr = £127.50. The pay estimate uses the same currency symbol shown on the rate input. Taxes and deductions are not included.

This calculator computes one shift at a time. For weekly totals, calculate each shift individually and add the decimal hours together. For example, 5 shifts of 8.5 hours each = 42.5 total hours.

The SVG arc chart visualises your shift as a coloured arc on a 24-hour clock ring. Midnight is at the top. The worked period (after break deduction) is shown in cyan; the full 24 hours forms the track. This makes it easy to see where your shift sits in the day at a glance.

Yes — completely free, works on any device, no sign-up, no account needed.

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