Time & Duration Converter
Convert nanoseconds (ns), microseconds (μs), milliseconds (ms), seconds (s), minutes (min), hours (h), days, weeks, fortnights, months (30 d), years (365 d) and decades. Type in any unit; all others update instantly.
s
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FAQ
Why do you use 30-day months and 365-day years?
They’re convenient fixed definitions for quick math. Calendar months vary (28–31 days) and years have leap days; using fixed values keeps results consistent across conversions.
What is a fortnight?
A fortnight is 14 days. It’s common in some countries for scheduling or pay periods.
How accurate are sub-second units?
ms = 10⁻³ s, μs = 10⁻⁶ s, ns = 10⁻⁹ s. We convert exactly; very large/small values may display in scientific notation for readability.
Tips for using this converter
Select the unit first (e.g., hours), enter your number once, and all tiles update instantly. Press Enter on mobile to hide the keyboard.