Duration
8h 30m
Total hours
8.50
Total minutes
510
8 hours and 30 minutes (8.50 hours total).
Count My HoursFree time card calculator, hours calculator, military time and decimal-hours tools: fast, private, mobile-friendly.
Elapsed time between two moments
Pick a start and an end date-and-time and get the duration split into days, hours and minutes, with the total also shown as decimal hours (for billing and payroll) and raw minutes (for spreadsheets). Useful for shift spans across days, rental and parking periods, travel time, fasting windows and deadlines.
One honest detail most tools skip: when your range crosses a daylight-saving change, wall-clock arithmetic and real elapsed time differ by an hour. This calculator reports true elapsed time and flags the DST crossing, so the number you copy is the number that actually elapsed.
Frequently asked questions
The calculator takes the exact difference between the two moments and breaks it into days, hours and minutes, plus the total in hours and in minutes. It's true elapsed time, computed in your local time zone.
The calculator reports true elapsed time. So a "9 PM to 9 AM" range across a spring-forward night is 11 hours of real time, not 12. And it shows a note whenever the range crosses a DST boundary. Wall-clock tools that ignore this are silently off by an hour twice a year.
Yes, that's the hours calculator, which is quicker for same-day or overnight shifts. This page is for spans longer than a day, where the calendar matters.
Billing and payroll usually want decimal hours (minutes ÷ 60), and scripts and spreadsheets often want raw minutes. Showing every form at once means no follow-up conversion, or use the decimal hours converter directly.