Hours Calculator – Time, Work, and Decimal Hours in One Tool
This Hours Calculator helps you quickly measure time differences, calculate work hours, convert between hours and minutes, and work with decimal hours for timesheets and billing.
Time Difference Between Two Times
In the Time Difference tab, enter a start and end time to see the total duration in hours, minutes, and seconds. You can also mark if the end time is on the next day (crossing midnight).
Duration (hours) = Duration (minutes) ÷ 60
Work Hours With Breaks
The Work Hours tab is ideal for shifts and basic timesheets. Enter your start and end time, plus total break minutes and how many days you work per week. The calculator shows daily and weekly paid hours.
Decimal Hours For Timesheets and Invoices
Many timesheets use decimal hours instead of HH:MM. For example, 7 hours 30 minutes becomes 7.5 hours. The Decimal Hours tab lets you convert in both directions.
Add or Subtract Time
Use the Add/Subtract Time tab to start from a base time and add or subtract hours and minutes. This is useful for planning schedules, travel time, or stacking tasks together.
Convert Between Hours, Minutes, and Seconds
The Hours Converter tab combines hours, minutes, and seconds into any unit you need. You can see totals in hours, minutes, seconds, and HH:MM:SS.
Multi-Day Duration Between Dates
For longer time spans, the Multi-Day Duration tab lets you pick a start date and time and an end date and time. The calculator returns the total days, hours, and minutes between them.
Use This Hours Calculator Anywhere
This multi-mode hours calculator works globally and can be used for work, study, travel, and personal planning. Try more free time, math, finance, health, and science calculators on MyTimeCalculator to save time and reduce manual errors.