Time Duration Calculator
Calculate the duration between two times and convert between HH:MM format and decimal hours.
Time Difference
Duration
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Hours & Minutes
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Decimal Hours
Decimal Hours Converter
Convert a decimal hour value (e.g. 7.5) to hours and minutes.
Result
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HH:MM
Frequently Asked Questions
How do I calculate hours worked between two times?
Enter your start and end times in HH:MM format (24-hour clock) and click Calculate. The result shows the total in hours and minutes plus the decimal equivalent, which is useful for payroll and timesheets.
How do I convert 1.75 hours to hours and minutes?
1.75 hours = 1h 45min. Enter 1.75 in the Decimal Hours Converter. The rule: multiply the decimal fraction by 60 to get minutes. 0.75 × 60 = 45 minutes.
Does it handle overnight shifts?
Yes. If the end time is earlier than the start time, the calculator assumes the period crosses midnight and wraps forward by 24 hours (1,440 minutes).