⏱️ Time Unit Converter
Convert time between seconds, minutes, hours, days, weeks, months, and years.
How time unit conversion works
This calculator converts a time duration between the everyday units of seconds, minutes, hours, days, weeks, months, and years. It converts your input to seconds as a common base, then converts that value into your chosen output unit.
Because months and years vary in length, this tool uses standard average calendar figures: a month is treated as 1/12 of a Julian year (30.4375 days) and a year is treated as 365.25 days, which accounts for leap years. Seconds, minutes, hours, days, and weeks use their fixed, exact definitions.
This tool is provided for general planning and educational purposes. For precise calendar-date arithmetic (e.g. exact days between two specific dates), a dedicated date calculator is more accurate than the average month/year figures used here.