Free Online Unit Converter
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Time Converter

Convert between seconds, minutes, hours, days and more

Quick Conversions

Millisecond to Second Millisecond to Minute Millisecond to Hour Millisecond to Day Millisecond to Week Millisecond to Month Millisecond to Year Second to Millisecond Second to Minute Second to Hour Second to Day Second to Week Second to Month Second to Year Minute to Millisecond Minute to Second Minute to Hour Minute to Day Minute to Week Minute to Month Minute to Year Hour to Millisecond Hour to Second Hour to Minute Hour to Day Hour to Week Hour to Month Hour to Year Day to Millisecond Day to Second Day to Minute Day to Hour Day to Week Day to Month Day to Year Week to Millisecond Week to Second Week to Minute Week to Hour Week to Day Week to Month Week to Year Month to Millisecond Month to Second Month to Minute Month to Hour Month to Day Month to Week Month to Year Year to Millisecond Year to Second Year to Minute Year to Hour Year to Day Year to Week Year to Month

About Time Conversion

Time conversion is fundamental in scheduling, project management, scientific calculations, and everyday planning. The SI base unit of time is the second, originally defined as 1/86,400 of a mean solar day and now defined by the cesium atomic clock. Minutes, hours, and days follow well-known multiples of 60 and 24.

Months and years present a challenge because they are not exact multiples of days. Our converter uses the average Gregorian month (30.436875 days or 2,629,746 seconds) and the average Gregorian year (365.2425 days or 31,556,952 seconds) for precise conversions.

This converter is especially useful for developers working with time-based calculations, project managers estimating durations, and anyone who needs to quickly translate between different time units for scheduling or scientific work.