All Categories
Time Converters
Convert between seconds, minutes, hours, days, weeks, months, and years.
Time is measured in seconds, the SI base unit, with larger units built by fixed multiples: 60 seconds in a minute, 60 minutes in an hour, 24 hours in a day, 7 days in a week. Conversions between these units are exact. Conversions involving months and years are approximate because months vary in length (28–31 days) and a year is about 365.25 days — which is why leap years exist. Always treat month-based conversions as estimates unless the exact month is known.
Reviewed August 2026
10 Converters
Minutes to Hours
Minutes → Hours
Hours to Minutes
Hours → Minutes
Hours to Days
Hours → Days
Days to Hours
Days → Hours
Days to Weeks
Days → Weeks
Weeks to Days
Weeks → Days
Days to Years
Days → Years
Years to Days
Years → Days
Milliseconds to Seconds
Milliseconds → Seconds
Seconds to Milliseconds
Seconds → Milliseconds
Featured Guides
Other Categories
Length ConvertersWeight ConvertersTemperature ConvertersVolume ConvertersArea ConvertersCurrency ConvertersSpeed ConvertersDigital Data ConvertersEnergy ConvertersPower ConvertersPressure ConvertersFuel Economy ConvertersCooking ConvertersAngle ConvertersFrequency ConvertersForce ConvertersTorque ConvertersDensity Converters