Hours Calculator
Calculate total hours and minutes between two times, or sum multiple time entries for timesheets.
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How to use this calculator
- 1
Enter your start time (hours and minutes).
- 2
Enter your end time.
- 3
Enter break time in minutes to be deducted.
- 4
The result shows total hours worked in both H:MM and decimal format.
Frequently asked questions
What is decimal hours format?
Decimal hours express time as a single number. 8 hours 30 minutes = 8.50 hrs. Payroll and billing systems often use decimal hours. Multiply decimal hours by your hourly rate to get pay.
What if I work past midnight?
If your end time is before your start time, the calculator automatically adds 24 hours to handle overnight shifts.
How do I calculate weekly hours?
Calculate each day's hours separately, then add them. Most people work 40 hours per 5-day week = 8 hours/day average.
How do I convert 7.75 hours to hours and minutes?
0.75 hours × 60 = 45 minutes. So 7.75 hours = 7 hours 45 minutes.
Hours and time calculation for work
Decimal vs H:MM time formats
Payroll systems typically use decimal hours (8.5 hours) while humans think in H:MM (8:30). To convert: multiply the decimal minutes by 60. 8.75 hrs = 8h 45min. 7.33 hrs = 7h 20min. To convert back: divide minutes by 60.
Overtime calculation
Standard full-time work is 8 hours/day or 40 hours/week. Hours beyond that are overtime (typically paid at 1.5×). Weekly overtime: total weekly hours − 40. Daily overtime (in some jurisdictions): daily hours − 8. Always check local labour law.
Timesheet best practices
Log start and end times immediately — memory is unreliable. Include break time. Use decimal format for billing. Round to the nearest 6 minutes (0.1 hr) for professional services billing. Keep records for at least 3 years.
Learn more from an authoritative source:
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →