Time calculator collection
Time calculators for hours, shifts, dates, and working days.
Choose the calculation that matches your task, whether you need the time between two clock times, net hours after a break, decimal hours for a timesheet, or a deadline based on working days.
Choose by task
Start with the result you need.
Clock-time calculations and calendar-date calculations answer different questions. These tools keep those jobs separate so the result is easier to understand and check.
Best for
Hours and minutes between a start time and end time
Time Duration Calculator
Calculate the time between two times in hours, minutes, or total minutes, including overnight shifts and breaks.
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Best for
Net shift hours after an unpaid break
Work Hours Calculator
Calculate net work hours after an unpaid break and estimate weekly hours, including overnight shifts.
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Best for
Converting hours and minutes into decimal hours
Hours to Decimal Converter
Convert hours and minutes to decimal hours for timesheets, payroll, invoices, and work-hour tracking.
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Best for
Calendar days between two dates
Date Difference Calculator
Count calendar days, full weeks, and remaining days between two selected dates.
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Best for
Deadlines that skip selected weekends and holidays
Working Days Calculator
Count working days or business days between dates, excluding weekends and optional holidays for deadlines and schedules.
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Practical guides
Understand the number before you use it.
Work through ordinary examples, overnight times, breaks, timesheet conversions, and working-day rules without leaving the topic.
How to calculate time between two times
Learn how to calculate hours and minutes between two times, including overnight shifts, breaks, and total-minute results.
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Work hours calculator: subtract breaks and handle overnight shifts
A practical way to separate a full shift span from unpaid break time and estimate a weekly schedule.
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How to calculate work hours in a week from a shift schedule
Turn daily start times, finish times, and unpaid breaks into a clear weekly work-hours estimate.
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Hours to decimal conversion for timesheets and payroll
Learn how to convert hours and minutes to decimal hours for timesheets, payroll, invoices, and billing.
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Working days calculator: count weekdays in a year, month, or date range
Learn how to count working days between dates and estimate weekdays in a year or month, excluding weekends and holidays.
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Common questions
Which calculator finds the hours between two times?
Use the Time Duration Calculator for a start time and end time. It returns hours, minutes, and total minutes, including an option for an end time after midnight.
Which calculator subtracts a work break?
Use the Work Hours Calculator. It starts with the full shift duration, subtracts the unpaid break you enter, and can estimate weekly hours.
When should I use the Date Difference Calculator?
Use it for whole calendar dates rather than times of day. It can show the difference in days, weeks, months, and years.
Can these results be used for payroll or official deadlines?
Use them as planning estimates. Workplace rules, paid breaks, rounding, holidays, and official records can change a payable total or formal deadline.