Time & General
Time Duration Calculator
Enter start and end times to see hours and minutes between them.
How long between two times?
Duration between two clock times is end minutes minus start minutes on a 24-hour clock; if the result is negative, the shift wrapped past midnight and twenty-four hours are added. Enter times as HH:MM (for example 09:30 and 17:15). The result shows hours and minutes, total minutes and decimal hours — handy for parking tickets, study blocks and rota checks. Unpaid lunch breaks are not subtracted automatically; shorten the end time or adjust mentally. Multi-day calendar spans need a date-aware tool instead. For weekday-only business spans try the business days calculator.
Worked example
09:30 to 17:15 → 7 h 45 min (465 minutes, 7.75 decimal hours) on the same day.
Limits and assumptions
Clock times only. A single overnight wrap is supported; multi-day ranges are not.
Frequently asked questions
Do I need 24-hour format?
Yes — enter HH:MM such as 17:00 rather than 5:00 pm.
How do overnight shifts work?
If end is earlier than start (for example 22:00 to 06:00), the calculator adds 24 hours so the duration stays positive.
What about unpaid breaks?
Subtract break minutes yourself or set a later start / earlier end so the span matches paid time only.
Why show decimal hours?
Payroll and spreadsheets often want hours as a decimal (7.75) instead of 7 h 45 min.