Time duration calculator
Find the elapsed hours and minutes between two clock times, including an interval that crosses midnight.
Did this calculator give you what you needed?
What could be better?
Hours and minutes without decimal ambiguity
The calculator converts each clock time to minutes after midnight, subtracts the start, then converts the result back to hours and minutes.
Crossing midnight
Enable the next-day option for a shift such as 10:30 PM to 6:15 AM. Without it, an earlier end time produces a negative interval so the assumption stays visible.
More tools
Compare dates or add and subtract calendar units.
Business daysCount weekdays and optional US federal holidays.
Time cardTotal weekly shifts and subtract unpaid breaks.
Age calculatorFind calendar age on today or another date.
Military timeConvert between 12-hour and 24-hour clock times.
Decimal timeConvert hours and minutes to decimal hours and back.