One start-to-end span
Calculate hours and minutes between a Start time and End time. Subtract an optional break, handle an overnight span, and see the same result as decimal hours and total minutes.
Private by design.
Your entered times stay in this browser page. The calculator does not send them to a server or save a work history.
End earlier than Start is treated as the next day. Identical times are left unresolved because they could mean zero or 24 hours.
Each clock value is converted to minutes after midnight. If End is later than Start, the gross span is End − Start. If End is earlier, the calculator adds 1,440 minutes to End first and marks the span as crossing midnight.
The optional break is then subtracted once from that gross span. The exact result remains an integer number of minutes.
8h 15m and 8.25 hours describe the same 495-minute result. Decimal hours divide total minutes by 60; they are not base-100 clock minutes. The calculator shows both so you can use the representation your task needs.
Start 08:30, End 17:15, Break 30 minutes. The gross span is 8h 45m. After the break, the result is 8h 15m, or 8.25 decimal hours.
Start 22:00, End 06:00, Break 30 minutes. Because End is earlier than Start, End is treated as the next day. Gross time is 8h; the net result is 7h 30m, or 7.5 decimal hours. The result state reads Crosses midnight.
09:00 → 09:00 could mean zero elapsed time or a full 24 hours. Without dates or an explicit day offset, the calculator cannot know which you intend, so it asks for different clock times instead of silently choosing.
This app measures one clock span. Use Time Calculator to add or subtract duration quantities. Use Time Card Calculator for a Monday–Sunday punch and lunch ledger. A future Time Duration Calculator can own date-and-time intervals.
It does not apply payroll rounding, overtime rules, break laws, wages, time zones, daylight-saving changes, or date arithmetic. If you need official payroll or legal treatment, verify the result against the policy or records that govern your situation.
See How to Calculate Hours Between Two Times for the minute conversion, overnight rule, break subtraction, and decimal-hour method step by step.
