Calculation Results
Total Hours: 0.00
Total Minutes: 0
Total Seconds: 0
Hours Calculator
What the hours tool totals for you
Whether you bill clients by the hour or file a weekly time card, this tool totals the time between two clock times. Enter a Start Time and an End Time and it reports the span in hours and minutes. Split shifts are fine too, since each pair of times is handled on its own.
Freelancers preparing invoices, nurses logging shifts, and managers reviewing timesheets use it to catch rounding errors before pay runs. It also helps drivers track duty time against legal limits.
The time math, including overnight shifts
The math converts both times to minutes since midnight and subtracts. A Break Time entry is deducted from the total, and when the end time is earlier than the start, the tool assumes an overnight shift and adds 24 hours before subtracting.
From 9:00 to 17:30 the difference is 8 hours and 30 minutes, or 8.5 decimal hours. From 22:00 to 06:00 the shift crosses midnight, yet the result is still a clean 8 hours; with a 30 minute break, 7.5 billed hours remain. That same method scales across a whole week of time cards.
Entering times and avoiding payroll mistakes
Using it takes three fields: set Start Time, set End Time, and add Break Time if any unpaid pause applies, then press Calculate Hours. The result appears as both an hours and minutes figure and a decimal value ready for payroll multiplication.
Common pitfalls to watch: enter times on a 24 hour clock such as 17:30 for 5:30 pm, and never skip the Break Time field when lunch is unpaid, because a 45 minute lunch across a week quietly overstates pay by nearly 4 hours. The decimal output also feeds cleanly into spreadsheet formulas if you track hours there.
Frequently Asked Questions
How is 9:00 to 17:30 handled?
The span is exactly 8 hours and 30 minutes, which is 8.5 in decimal form. Multiply 8.5 by your hourly rate to get the amount earned for that day.
What about shifts that cross midnight?
They are supported automatically. A shift from 22:00 to 06:00 reads as 8 hours, because the end time is treated as the following morning rather than a negative span.
Should I enter a break?
Yes, whenever the pause is unpaid. A 30 minute Break Time entry turns 8.5 hours into 8.0 paid hours, which keeps a weekly total honest across five shifts.
Which format should times use?
Either works, but 24 hour entries such as 17:30 instead of 5:30 pm remove am and pm mistakes. One wrong am or pm tap can swing a shift total by many hours.
Are decimal hours better than minutes?
For payroll, yes: 8 hours 30 minutes equals 8.5 decimal hours, and 8.5 times a 20 per hour rate is 170 in pay. Minutes listed as 30 cannot be multiplied directly.