Hours Between Two Times Calculator
Calculate hours between two times with AM/PM support and accurate time duration calculations. Perfect for work hours, scheduling, and time management with our easy-to-use calculator.
Quick Answer
Hours Between = End Time - Start Time. 5:00 PM - 9:00 AM = 8 hours. Crosses midnight? Add 24 hours to end time first. Essential for work hours and scheduling.
Calculator Preview
Total Hours: 8.5 hours
Work Hours: 8.0 hours
Minutes: 510 minutes
Key Features
AM/PM Support
12-hour and 24-hour time formats
Break Time
Subtract lunch and break periods
Cross Midnight
Calculate times spanning midnight
Multiple Units
Hours, minutes, and seconds
How It Works
Enter Start Time
Input your beginning time with AM/PM
Enter End Time
Input your ending time with AM/PM
Add Break Time
Optionally subtract break periods
Calculate Duration
See total hours and work hours
Why Calculate Hours Between Times?
Work Hours
Calculate daily work time
Scheduling
Plan activities and events
Time Tracking
Monitor project duration
Common Use Cases
Work Hours Calculation
Calculate daily work hours including breaks. 9:00 AM to 5:00 PM with 1-hour lunch = 8 work hours. Perfect for payroll and time tracking.
Study Sessions
Track study time between classes or sessions. 2:00 PM to 6:30 PM = 4.5 hours of focused study time.
Travel Time
Calculate travel duration between departure and arrival times. 7:30 AM departure to 10:15 AM arrival = 2 hours 45 minutes.
Event Planning
Schedule events and calculate duration. 6:00 PM to 11:30 PM party = 5.5 hours of event time.
Time Calculation Examples
Same Day Calculation
Example: 9:00 AM to 5:30 PM
Convert to 24-hour: 09:00 to 17:30
Calculate: 17:30 - 09:00 = 8.5 hours
Result: 8 hours 30 minutes
Crossing Midnight
Example: 10:00 PM to 2:00 AM
Convert to 24-hour: 22:00 to 02:00 (next day)
Add 24 hours: 02:00 + 24 = 26:00
Calculate: 26:00 - 22:00 = 4 hours
Result: 4 hours
With Break Time
Example: 8:00 AM to 5:00 PM with 1-hour lunch
Total time: 9 hours
Subtract break: 9 hours - 1 hour = 8 hours
Result: 8 work hours
Calculate Time Duration
Find hours between any two times for work, scheduling, and time management
Use Full CalculatorFrequently Asked Questions
How do you calculate time that crosses midnight?
Add 24 hours to the end time before subtracting. For 11 PM to 2 AM: (2 + 24) - 23 = 3 hours. This accounts for the day change.
Should I include break time in work hours?
Usually no. Work hours typically exclude unpaid breaks like lunch. Include paid breaks in total hours but subtract unpaid breaks from work hours.
What about seconds in time calculations?
Convert everything to minutes or seconds for precision. 1 hour 30 minutes = 90 minutes. Calculate in minutes, then convert back to hours and minutes.
How do time zones affect calculations?
Convert both times to the same timezone before calculating. For travel, account for timezone changes in your total duration calculation.