Date & Time
Time Duration Calculator
Calculate the duration between two times in hours and minutes.
8h 30m
8.50 decimal hours
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Frequently Asked Questions
Quick answers to common questions
How does this tool work?+
Enter start and end times in 24-hour format. Overnight spans are supported.
Is this calculator free?+
Yes. 100% free with no signup. All calculations run in your browser.
Is my data private?+
Yes. Nothing is sent to any server.
Does it work on mobile?+
Yes. All date and time tools are mobile-friendly.