Time Duration Calculator

How long — from clock time to clock time.

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Your Results

Duration8 hrs 30 min
Total minutes510

If the end time is earlier than the start time, it's treated as overnight (past midnight).

Frequently Asked Questions

How do I calculate hours between times?

Convert both to minutes, subtract, and convert back. An end time before the start time means the shift crosses midnight.

How many hours is a 9-5 shift?

9:00 AM to 5:00 PM is 8 hours. With a 30-minute lunch, billable hours are 7.5.

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