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Hours Calculator

The Hours Calculator is an indispensable tool for employees, freelancers, managers, and students. Compute the exact duration between start and end times (including overnight shifts crossing midnight), deduct lunch breaks, calculate total decimal hours (e.g. 8.25 hrs), and generate complete weekly timesheets with regular and overtime earnings.

Enter your start time, end time, and unpaid lunch break:
$
💡 Automatically calculates overnight shifts that cross past midnight (e.g. 10:00 PM to 6:00 AM).
Total Shift Duration
8h 0m
= 8.00 decimal hours
Total Shift Earnings:
$200.00
Rate: $25.00/hr × 8.00 hours
Standard payroll decimal conversion ready.

Time Differential and Decimal Hours Conversion

How this mathematical and clinical model is calculated

Decimal Hours = Total Minutes / 60 | Wage = (Regular Hours × Rate) + (OT Hours × Rate × 1.5)

Hours and minutes are converted into decimal representation for standard payroll processing. When an end time is earlier than the start time (e.g., 10:00 PM to 6:00 AM), 24 hours (1,440 minutes) are added to accurately calculate the overnight shift.

Step-by-Step Calculation Process:

1

Convert start time and end time into total minutes from midnight.

2

If End Minutes < Start Minutes, add 1,440 minutes (24 hours) for overnight shifts.

3

Subtract any unpaid break duration in minutes.

4

Convert net minutes to Hours:Minutes format and Decimal Hours (Minutes ÷ 60).

Key Capabilities & Features

Elapsed time calculator with 12-hour AM/PM and 24-hour formats
Automatic overnight shift support crossing midnight
Unpaid break time deduction (15m, 30m, 45m, 60m, or custom)
Dual display: Hours & Minutes (e.g., 7h 45m) and Decimal Hours (e.g., 7.75 hrs)
Weekly Timesheet mode with hourly wage and overtime (1.5x) calculation
Add or subtract hours and minutes from any given timestamp
Help & FAQ

Frequently Asked Questions: Hours Calculator

Everything you need to know about tools in this section.

Divide the number of minutes by 60. For example: 15 minutes = 0.25 hours, 30 minutes = 0.50 hours, and 45 minutes = 0.75 hours. 8 hours and 15 minutes equals 8.25 decimal hours.