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Hours Calculator
Add hours, convert time units, calculate work hours, and more with our comprehensive time calculator
Choose Calculator Mode
Add Hours Calculator
h
m
h
m
h
m
Total Time
0h 0m
Hours & Minutes
0.00h
Decimal Hours
0m
Total Minutes
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Quick Tips
💡
Use 24-hour format for time calculations (e.g., 2 PM = 14:00)
⏰
Standard work day is 8 hours with a 1-hour lunch break
📊
Overtime typically starts after 40 hours per week
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Switch between calculator modes using the buttons above
Time Conversion Reference
1 hour60 minutes
1 day24 hours
1 week168 hours
1 month≈ 730 hours
1 year8,760 hours
Understanding Time Calculations
Calculator Features
- •Add Hours: Sum multiple time periods for project tracking
- •Convert Time: Switch between seconds, minutes, hours, days, etc.
- •Time Difference: Calculate work hours between start and end times
- •Hours From Now: Find future dates and times
Common Use Cases
- •Payroll and timesheet calculations
- •Project time tracking and estimation
- •Scheduling and appointment planning
- •Travel time and duration calculations
Time Format Guidelines
24-Hour Format
Use 0-23 for hours (e.g., 1 PM = 13:00, 11 PM = 23:00)
Break Time
Include unpaid breaks like lunch to get accurate work hours
Decimal Hours
30 minutes = 0.5 hours, 15 minutes = 0.25 hours
Work Hour Standards
Full-time (per day):8 hours
Full-time (per week):40 hours
Part-time (per day):< 8 hours
Overtime (US):> 40 hrs/week
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