Time Unit Converter
Convert between time units — seconds, minutes, hours, days, weeks, months, years.
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How It Works
Months use 30.4375 days (average) and years use 365.25 days to account for leap years. For exact differences between dates, use a date calculator.
FAQ
Why is a month 30.44 days?
It's the average month length over 4 years (12 months ÷ 365.25 days).
Leap years?
Built into the year-to-day factor of 365.25.
Decades, centuries?
Not in this version — multiply years.
Exact dates?
Use a dedicated date difference tool.
Saved?
No.
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